A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2832690 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 35 41 42 47 49 70 82 94 98 105 123 141 147 205 210 235 245 246 282 287 294 329 410 470 490 574 615 658 705 735 861 987 1,230 1,410 1,435 1,470 1,645 1,722 1,927 1,974 2,009 2,303 2,870 3,290 3,854 4,018 4,305 4,606 4,935 5,781 6,027 6,909 8,610 9,635 9,870 10,045 11,515 11,562 12,054 13,489 13,818 19,270 20,090 23,030 26,978 28,905 30,135 34,545 40,467 57,810 60,270 67,445 69,090 80,934 94,423 134,890 188,846 202,335 283,269 404,670 472,115 566,538 944,230 1,416,345 and 2,832,690, with no remainder.
Since 2,832,690 cannot be divided by just 1 and 2,832,690, it is not a prime number.