A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5662734 can be evenly divided by 1 2 3 6 7 11 14 17 21 22 33 34 42 49 51 66 77 98 102 103 119 147 154 187 206 231 238 294 309 357 374 462 539 561 618 714 721 833 1,078 1,122 1,133 1,309 1,442 1,617 1,666 1,751 2,163 2,266 2,499 2,618 3,234 3,399 3,502 3,927 4,326 4,998 5,047 5,253 6,798 7,854 7,931 9,163 10,094 10,506 12,257 15,141 15,862 18,326 19,261 23,793 24,514 27,489 30,282 36,771 38,522 47,586 54,978 55,517 57,783 73,542 85,799 111,034 115,566 134,827 166,551 171,598 257,397 269,654 333,102 404,481 514,794 808,962 943,789 1,887,578 2,831,367 and 5,662,734, with no remainder.
Since 5,662,734 cannot be divided by just 1 and 5,662,734, it is not a prime number.