A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4770936 can be evenly divided by 1 2 3 4 6 8 9 12 18 23 24 36 43 46 67 69 72 86 92 129 134 138 172 184 201 207 258 268 276 344 387 402 414 516 536 552 603 774 804 828 989 1,032 1,206 1,541 1,548 1,608 1,656 1,978 2,412 2,881 2,967 3,082 3,096 3,956 4,623 4,824 5,762 5,934 6,164 7,912 8,643 8,901 9,246 11,524 11,868 12,328 13,869 17,286 17,802 18,492 23,048 23,736 25,929 27,738 34,572 35,604 36,984 51,858 55,476 66,263 69,144 71,208 103,716 110,952 132,526 198,789 207,432 265,052 397,578 530,104 596,367 795,156 1,192,734 1,590,312 2,385,468 and 4,770,936, with no remainder.
Since 4,770,936 cannot be divided by just 1 and 4,770,936, it is not a prime number.