A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9487530 can be evenly divided by 1 2 3 5 6 9 10 13 15 17 18 26 27 30 34 39 45 51 53 54 65 78 81 85 90 102 106 117 130 135 153 159 162 170 195 221 234 255 265 270 306 318 351 390 405 442 459 477 510 530 585 663 689 702 765 795 810 901 918 954 1,053 1,105 1,170 1,326 1,377 1,378 1,431 1,530 1,590 1,755 1,802 1,989 2,067 2,106 2,210 2,295 2,385 2,703 2,754 2,862 3,315 3,445 3,510 3,978 4,134 4,293 4,505 4,590 4,770 5,265 5,406 5,967 6,201 6,630 6,885 6,890 7,155 8,109 8,586 9,010 9,945 10,335 10,530 11,713 11,934 12,402 13,515 13,770 14,310 16,218 17,901 18,603 19,890 20,670 21,465 23,426 24,327 27,030 29,835 31,005 35,139 35,802 37,206 40,545 42,930 48,654 55,809 58,565 59,670 62,010 70,278 72,981 81,090 89,505 93,015 105,417 111,618 117,130 121,635 145,962 175,695 179,010 186,030 210,834 243,270 279,045 316,251 351,390 364,905 527,085 558,090 632,502 729,810 948,753 1,054,170 1,581,255 1,897,506 3,162,510 4,743,765 and 9,487,530, with no remainder.
Since 9,487,530 cannot be divided by just 1 and 9,487,530, it is not a prime number.