A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8874450 can be evenly divided by 1 2 3 5 6 9 10 13 15 18 25 26 30 37 39 41 45 50 65 74 75 78 82 90 111 117 123 130 150 185 195 205 222 225 234 246 325 333 369 370 390 410 450 481 533 555 585 615 650 666 738 925 962 975 1,025 1,066 1,110 1,170 1,230 1,443 1,517 1,599 1,665 1,845 1,850 1,950 2,050 2,405 2,665 2,775 2,886 2,925 3,034 3,075 3,198 3,330 3,690 4,329 4,551 4,797 4,810 5,330 5,550 5,850 6,150 7,215 7,585 7,995 8,325 8,658 9,102 9,225 9,594 12,025 13,325 13,653 14,430 15,170 15,990 16,650 18,450 19,721 21,645 22,755 23,985 24,050 26,650 27,306 36,075 37,925 39,442 39,975 43,290 45,510 47,970 59,163 68,265 72,150 75,850 79,950 98,605 108,225 113,775 118,326 119,925 136,530 177,489 197,210 216,450 227,550 239,850 295,815 341,325 354,978 493,025 591,630 682,650 887,445 986,050 1,479,075 1,774,890 2,958,150 4,437,225 and 8,874,450, with no remainder.
Since 8,874,450 cannot be divided by just 1 and 8,874,450, it is not a prime number.