A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5427000 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 67 72 75 81 90 100 108 120 125 134 135 150 162 180 200 201 216 225 250 268 270 300 324 335 360 375 402 405 450 500 536 540 600 603 648 670 675 750 804 810 900 1,000 1,005 1,080 1,125 1,206 1,340 1,350 1,500 1,608 1,620 1,675 1,800 1,809 2,010 2,025 2,250 2,412 2,680 2,700 3,000 3,015 3,240 3,350 3,375 3,618 4,020 4,050 4,500 4,824 5,025 5,400 5,427 6,030 6,700 6,750 7,236 8,040 8,100 8,375 9,000 9,045 10,050 10,125 10,854 12,060 13,400 13,500 14,472 15,075 16,200 16,750 18,090 20,100 20,250 21,708 24,120 25,125 27,000 27,135 30,150 33,500 36,180 40,200 40,500 43,416 45,225 50,250 54,270 60,300 67,000 72,360 75,375 81,000 90,450 100,500 108,540 120,600 135,675 150,750 180,900 201,000 217,080 226,125 271,350 301,500 361,800 452,250 542,700 603,000 678,375 904,500 1,085,400 1,356,750 1,809,000 2,713,500 and 5,427,000, with no remainder.
Since 5,427,000 cannot be divided by just 1 and 5,427,000, it is not a prime number.