A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4694172 can be evenly divided by 1 2 3 4 6 7 12 14 21 28 29 41 42 47 58 82 84 87 94 116 123 141 164 174 188 203 246 282 287 329 348 406 492 564 574 609 658 812 861 987 1,148 1,189 1,218 1,316 1,363 1,722 1,927 1,974 2,378 2,436 2,726 3,444 3,567 3,854 3,948 4,089 4,756 5,452 5,781 7,134 7,708 8,178 8,323 9,541 11,562 13,489 14,268 16,356 16,646 19,082 23,124 24,969 26,978 28,623 33,292 38,164 40,467 49,938 53,956 55,883 57,246 80,934 99,876 111,766 114,492 161,868 167,649 223,532 335,298 391,181 670,596 782,362 1,173,543 1,564,724 2,347,086 and 4,694,172, with no remainder.
Since 4,694,172 cannot be divided by just 1 and 4,694,172, it is not a prime number.