The number 3,796,884 can be evenly divided by 1 2 3 4 6 7 9 12 13 14 18 19 21 26 28 36 38 39 42 52 57 61 63 76 78 84 91 114 117 122 126 133 156 171 182 183 228 234 244 247 252 266 273 342 364 366 399 427 468 494 532 546 549 684 732 741 793 798 819 854 988 1,092 1,098 1,159 1,197 1,281 1,482 1,586 1,596 1,638 1,708 1,729 2,196 2,223 2,318 2,379 2,394 2,562 2,964 3,172 3,276 3,458 3,477 3,843 4,446 4,636 4,758 4,788 5,124 5,187 5,551 6,916 6,954 7,137 7,686 8,113 8,892 9,516 10,374 10,431 11,102 13,908 14,274 15,067 15,372 15,561 16,226 16,653 20,748 20,862 22,204 24,339 28,548 30,134 31,122 32,452 33,306 41,724 45,201 48,678 49,959 60,268 62,244 66,612 73,017 90,402 97,356 99,918 105,469 135,603 146,034 180,804 199,836 210,938 271,206 292,068 316,407 421,876 542,412 632,814 949,221 1,265,628 1,898,442 and 3,796,884, with no remainder.
Since 3,796,884 cannot be divided by just 1 and 3,796,884, it is a composite number.