A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9638244 can be evenly divided by 1 2 3 4 6 7 9 11 12 14 18 19 21 22 27 28 33 36 38 42 44 54 57 61 63 66 76 77 84 99 108 114 122 126 132 133 154 171 183 189 198 209 228 231 244 252 266 297 308 342 366 378 396 399 418 427 462 513 532 549 594 627 671 684 693 732 756 798 836 854 924 1,026 1,098 1,159 1,188 1,197 1,254 1,281 1,342 1,386 1,463 1,596 1,647 1,708 1,881 2,013 2,052 2,079 2,196 2,318 2,394 2,508 2,562 2,684 2,772 2,926 3,294 3,477 3,591 3,762 3,843 4,026 4,158 4,389 4,636 4,697 4,788 5,124 5,643 5,852 6,039 6,588 6,954 7,182 7,524 7,686 8,052 8,113 8,316 8,778 9,394 10,431 11,286 11,529 12,078 12,749 13,167 13,908 14,091 14,364 15,372 16,226 17,556 18,117 18,788 20,862 22,572 23,058 24,156 24,339 25,498 26,334 28,182 31,293 32,452 36,234 38,247 39,501 41,724 42,273 46,116 48,678 50,996 52,668 56,364 62,586 72,468 73,017 76,494 79,002 84,546 89,243 97,356 114,741 125,172 126,819 146,034 152,988 158,004 169,092 178,486 219,051 229,482 253,638 267,729 292,068 344,223 356,972 438,102 458,964 507,276 535,458 688,446 803,187 876,204 1,070,916 1,376,892 1,606,374 2,409,561 3,212,748 4,819,122 and 9,638,244, with no remainder.
Since 9,638,244 cannot be divided by just 1 and 9,638,244, it is not a prime number.