2,864,974

2,864,974 is the number of votes that Hillary Clinton won the popular vote by in the 2016 U.S. Presidential election.  That is the widest margin of victory ever by someone who did not become President of the United States.

To put that in perspective:

That's more than the population of 17 states:

Nevada	35	2,790,136
New Mexico	36	2,085,287
Nebraska	37	1,868,516
West Virginia	38	1,854,304
Idaho	39	1,612,136
Hawaii	40	1,404,054
State	Population Ranking	Population
Maine	41	1,328,302
New Hampshire	42	1,323,459
Rhode Island	43	1,051,511
Montana	44	1,015,165
Delaware	45	925,749
South Dakota	46	844,877
Alaska	47	735,132
North Dakota	48	723,393
District of Columbia	49	646,449
Vermont	50	626,630
Wyoming	51	582,658

That's more the population of 92 countries: 

141	Jamaica	Americas	Caribbean	2,803,362	2,793,335	+0.4%
142	Namibia	Africa	Southern Africa	2,513,981	2,458,830	+2.2%
143	Botswana	Africa	Southern Africa	2,303,820	2,262,485	+1.8%
144	Qatar	Asia	Western Asia	2,291,368	2,235,355	+2.5%
145	Lesotho	Africa	Southern Africa	2,160,309	2,135,022	+1.2%
146	Republic of Macedonia	Europe	Southern Europe	2,081,012	2,078,453	+0.1%
147	Slovenia	Europe	Southern Europe	2,069,362	2,067,526	+0.1%
148	Gambia	Africa	Western Africa	2,054,986	1,990,924	+3.2%
149	Latvia	Europe	Northern Europe	1,955,742	1,970,503	−0.7%
150	Guinea-Bissau	Africa	Western Africa	1,888,429	1,844,325	+2.4%
151	Gabon	Africa	Middle Africa	1,763,142	1,725,292	+2.2%
152	Bahrain	Asia	Western Asia	1,396,829	1,377,237	+1.4%
153	Trinidad and Tobago	Americas	Caribbean	1,364,973	1,360,088	+0.4%
154	Estonia	Europe	Northern Europe	1,309,104	1,312,558	−0.3%
155	Swaziland	Africa	Southern Africa	1,304,063	1,286,970	+1.3%
156	Mauritius	Africa	Eastern Africa	1,277,459	1,273,212	+0.3%
157	Timor-Leste	Asia	South-Eastern Asia	1,211,245	1,184,765	+2.2%
158	Cyprus[i]	Europe	South-Eastern Europe	1,176,598	1,165,300	+1.0%
159	Djibouti	Africa	Eastern Africa	899,598	887,861	+1.3%
160	Fiji	Oceania	Melanesia	897,537	892,145	+0.6%
161	Equatorial Guinea	Africa	Middle Africa	869,587	845,060	+2.9%
162	Réunion	Africa	Eastern Africa	867,214	861,154	+0.7%
163	Comoros	Africa	Eastern Africa	807,118	788,474	+2.4%
164	Bhutan	Asia	Southern Asia	784,103	774,830	+1.2%
165	Guyana	Americas	South America	770,610	767,085	+0.5%
166	Montenegro	Europe	Southern Europe	626,101	625,781	+0.1%
167	Macau	Asia	Eastern Asia	597,126	587,606	+1.6%
168	Solomon Islands	Oceania	Melanesia	594,934	583,591	+1.9%
169	Western Sahara	Africa	Northern Africa	584,206	572,540	+2.0%
170	Luxembourg	Europe	Western Europe	576,243	567,110	+1.6%
171	Suriname	Americas	South America	547,610	542,975	+0.9%
172	Cabo Verde	Africa	Western Africa	526,993	520,502	+1.2%
173	Guadeloupe[j]	Americas	Caribbean	470,547	468,450	+0.4%
174	Brunei	Asia	South-Eastern Asia	428,874	423,188	+1.3%
175	Malta	Europe	Southern Europe	419,615	418,670	+0.2%
176	Martinique	Americas	Caribbean	396,364	396,425	0.0%
177	Bahamas	Americas	Caribbean	392,718	388,019	+1.2%
178	Maldives	Asia	Southern Asia	369,812	363,657	+1.7%
179	Belize	Americas	Central America	366,942	359,287	+2.1%
180	Iceland	Europe	Northern Europe	331,778	329,425	+0.7%
181	French Polynesia	Oceania	Polynesia	285,735	282,764	+1.1%
182	Barbados	Americas	Caribbean	285,006	284,215	+0.3%
183	French Guiana	Americas	South America	275,688	268,606	+2.6%
184	Vanuatu	Oceania	Melanesia	270,470	264,652	+2.2%
185	New Caledonia	Oceania	Melanesia	266,431	263,118	+1.3%
186	Mayotte	Africa	Eastern Africa	246,496	240,015	+2.7%
187	Samoa	Oceania	Polynesia	194,523	193,228	+0.7%
188	Sao Tome and Principe	Africa	Middle Africa	194,390	190,344	+2.1%
189	Saint Lucia	Americas	Caribbean	186,383	184,999	+0.7%
190	Guam	Oceania	Micronesia	172,094	169,885	+1.3%
191	Guernsey and  Jersey	Europe	Northern Europe	164,466	163,692	+0.5%
192	Curaçao	Americas	Caribbean	158,635	157,203	+0.9%
193	Kiribati	Oceania	Micronesia	114,405	112,423	+1.8%
194	Saint Vincent and the Grenadines	Americas	Caribbean	109,644	109,462	+0.2%
195	Grenada	Americas	Caribbean	107,327	106,825	+0.5%
196	Tonga	Oceania	Polynesia	106,915	106,170	+0.7%
197	United States Virgin Islands	Americas	Caribbean	106,415	106,291	+0.1%
198	Federated States of Micronesia	Oceania	Micronesia	104,966	104,460	+0.5%
199	Aruba	Americas	Caribbean	104,263	103,889	+0.4%
200	Seychelles	Africa	Eastern Africa	97,026	96,471	+0.6%
201	Antigua and Barbuda	Americas	Caribbean	92,738	91,818	+1.0%
202	Isle of Man	Europe	Northern Europe	88,421	87,780	+0.7%
203	Dominica	Americas	Caribbean	73,016	72,680	+0.5%
204	Andorra	Europe	Southern Europe	69,165	70,473	−1.9%
205	Bermuda	Americas	Northern America	61,662	62,004	−0.6%
206	Cayman Islands	Americas	Caribbean	60,764	59,967	+1.3%
207	Greenland	Americas	Northern America	56,196	56,186	0.0%
208	Saint Kitts and Nevis	Americas	Caribbean	56,183	55,572	+1.1%
209	American Samoa	Oceania	Polynesia	55,602	55,538	+0.1%
210	Northern Mariana Islands	Oceania	Micronesia	55,389	55,070	+0.6%
211	Marshall Islands	Oceania	Micronesia	53,069	52,993	+0.1%
212	Faroe Islands	Europe	Northern Europe	48,239	48,199	+0.1%
213	Sint Maarten	Americas	Caribbean	39,538	38,745	+2.0%
214	Monaco	Europe	Western Europe	37,863	37,731	+0.3%
215	Liechtenstein	Europe	Western Europe	37,776	37,531	+0.7%
216	Turks and Caicos Islands	Americas	Caribbean	34,904	34,339	+1.6%
217	Gibraltar	Europe	Southern Europe	32,373	32,217	+0.5%
218	San Marino	Europe	Southern Europe	31,950	31,781	+0.5%
219	British Virgin Islands	Americas	Caribbean	30,659	30,117	+1.8%
220	Caribbean Netherlands[k]	Americas	Caribbean	25,328	24,861	+1.9%
221	Palau	Oceania	Micronesia	21,501	21,291	+1.0%
222	Cook Islands	Oceania	Polynesia	20,948	20,833	+0.6%
223	Anguilla	Americas	Caribbean	14,763	14,614	+1.0%
224	Wallis and Futuna	Oceania	Polynesia	13,112	13,151	−0.3%
225	Nauru	Oceania	Micronesia	10,263	10,222	+0.4%
226	Tuvalu	Oceania	Polynesia	9,943	9,916	+0.3%
227	Saint Pierre and Miquelon	Americas	Northern America	6,301	6,288	+0.2%
228	Montserrat	Americas	Caribbean	5,154	5,125	+0.6%
229	Saint Helena, Ascension and Tristan da Cunha	Africa	Western Africa	3,956	3,961	−0.1%
230	Falkland Islands	Americas	South America	2,912	2,903	+0.3%
231	Niue	Oceania	Polynesia	1,612	1,610	+0.1%
232	Tokelau	Oceania	Polynesia	1,276	1,250	+2.1%

That's more people than in every city in the U.S. except for New York and Los Angeles. 

3	Chicago, Ill.	2,722,389	2,718,782	2,695,598	2,842,518	2,896,016	2,783,726	3	3	3	3
4	Houston, Tex.	2,239,558	2,195,914	2,100,263	2,016,582	1,953,631	1,630,553	4	4	4	4
5	Philadelphia, Pa.	1,560,297	1,553,165	1,526,006	1,463,281	1,517,550	1,585,577	5	5	5	5
6	Phoenix, Ariz.	1,537,058	1,513,367	1,445,632	1,461,575	1,321,045	983,403	10	6	6	6
7	San Antonio, Tex.	1,436,697	1,409,019	1,327,407	1,256,509	1,144,646	935,933	9	9	7	7
8	San Diego, Calif.	1,381,069	1,355,896	1,307,402	1,255,540	1,223,400	1,110,549	6	7	8	8
9	Dallas, Tex.	1,281,047	1,257,676	1,197,816	1,213,825	1,188,580	1,006,877	8	8	9	9
10	San Jose, Calif.	1,015,785	998,537	945,942	912,332	894,943	782,248	11	11	10	10
11	Austin, Tex.	912,791	885,400	790,390	690,252	656,562	465,622	25	16	14	11
12	Jacksonville,Fla.	853,382	842,583	821,784	782,623	735,617	635,230	15	14	11	13
13	San Francisco , Calif.	852,469	837,442	805,235	739,426	776,733	723,959	14	13	13	14
14	Indianapolis, Ind.	848,788	843,393	820,445	784,118	781,870	741,952	13	12	12	12
15	Columbus, Ohio	835,957	822,553	787,033	730,657	711,470	632,910	16	15	15	15
16	Fort Worth , Tex.	812,238	792,727	741,206	624,067	534,694	447,619	29	27	16	17
17	Charlotte, N.C.	809,958	792,862	731,424	610,949	540,828	395,934	33	26	17	16
18	Detroit, Mich.	680,250	688,701	713,777	886,671	951,270	1,027,974	7	10	18	18
19	El Paso, Tex.	679,036	674,443	649,121	598,590	563,662	515,342	22	23	19	19
20	Seattle , Wash.	668,342	652,405	608,660	573,911	563,374	516,259	21	24	23	21
21	Denver , Colo.	663,862	649,495	600,158	557,917	554,636	467,610	28	25	26	22
22	Washington, DC	658,893	646,449	601,723	550,521	572,059	606,900	19	21	24	23
23	Memphis, Tenn.	656,86	653,450	646,889	672,277	650,100	610,337	18	18	20	20
24	Boston, Mass.	655,884	645,966	617,594	559,034	589,141	574,283	20	20	22	24
25	Nashville-Davidson, Tenn.1	644,014	634,464	601,222	549,110	545,524	510,784	26	22	25	25
26	Baltimore, Md.	622,793	622,104	620,961	635,815	651,154	736,014	12	17	21	26
27	Oklahoma City, Okla.	620,602	610,613	579,999	531,324	506,132	444,719	30	29	31	27
28	Portland , Ore.	619,360	609,456	583,776	533,427	529,121	437,319	27	28	29	29
29	Las Vegas , Nev.	613,599	603,488	583,756	545,147	478,434	258,295	63	32	30	30
30	Louisville-Jefferson County, Ky.2	612,780	609,893	597,337	556,429	256,231	269,063	58	67	27	28
31	Milwaukee, Wis.	599,642	599,164	594,833	578,887	596,974	628,088	17	19	28	31
32	Albuquerque, N.M.	557,169	556,495	545,852	494,236	448,607	384,736	40	35	32	32
33	Tucson, Ariz.	527,972	526,116	520,116	515,526	486,699	405,390	34	32	33	33
34	Fresno, Calif.	515,986	509,924	494,665	461,116	427,652	354,202	48	37	34	34
35	Sacramento, Calif.	485,199	479,686	466,488	456,441	407,018	369,365	37	40	35	35
36	Long Beach, Calif.	473,577	469,428	462,257	474,014	461,522	429,433	32	34	36	36
37	Kansas City, Mo.	470,800	467,007	459,787	444,965	441,545	435,146	31	36	37	37
38	Mesa, Ariz.	464,704	457,587	439,041	442,780	396,375	288,091	53	42	38	38
39	Atlanta , Ga.	456,002	447,841	420,003	470,688	416,474	394,017	38	39	40	40
40	Virginia Beach, Va.	450,980	448,479	437,994	438,415	425,257	393,069	39	38	39	39
41	Omaha , Nebr.	446,599	434,353	408,958	414,521	390,007	335,795	47	44	42	42
41	Colorado Springs, Colo.	445,830	439,886	416,427	369,815	360,890	281,140	54	48	41	41
43	Raleigh, N.C.	439,896	431,746	403,892	–	–	–	–	–	43	43
44	Miami, Fla.	430,332	417,650	399,457	386,417	362,470	358,548	46	47	44	44
45	Oakland, Calif.	413,775	406,253	390,724	395,274	399,484	372,242	35	41	47	45
46	Minneapolis, Minn.	407,207	400,070	382,578	372,811	382,618	368,383	43	45	48	46
47	Tulsa, Okla.	399,682	398,121	391,906	382,457	393,049	367,302	44	43	46	47
48	Cleveland, Ohio	389,521	390,113	396,815	452,208	478,403	505,616	23	33	45	48
49	Wichita, Kans.	388,413	386,552	382,368	353,823	344,284	–	–	50	49	49
50	New Orleans, La.	384,320	378,715	343,829	455,188	484,674	495,080	24	38	51	51
51	Arlington, Tex.	383,204	379,577	365,438	362,805	332,969	261,721	62	54	50	50