A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8967552 can be evenly divided by 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 121 128 132 176 192 193 242 264 352 363 384 386 484 528 579 704 726 772 968 1,056 1,158 1,408 1,452 1,544 1,936 2,112 2,123 2,316 2,904 3,088 3,872 4,224 4,246 4,632 5,808 6,176 6,369 7,744 8,492 9,264 11,616 12,352 12,738 15,488 16,984 18,528 23,232 23,353 24,704 25,476 33,968 37,056 46,464 46,706 50,952 67,936 70,059 74,112 93,412 101,904 135,872 140,118 186,824 203,808 271,744 280,236 373,648 407,616 560,472 747,296 815,232 1,120,944 1,494,592 2,241,888 2,989,184 4,483,776 and 8,967,552, with no remainder.
Since 8,967,552 cannot be divided by just 1 and 8,967,552, it is not a prime number.