15247972 has 12 divisors (see below), whose sum is σ = 27304816. Its totient is φ = 7446600.

The previous prime is 15247957. The next prime is 15247993. The reversal of 15247972 is 27974251.

It is a super-2 number, since 2×15247972² = 465001300225568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44154 + ... + 44497.

Almost surely, 2^15247972 is an apocalyptic number.

It is an amenable number.

15247972 is a deficient number, since it is larger than the sum of its proper divisors (12056844).

15247972 is a wasteful number, since it uses less digits than its factorization.

15247972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88698 (or 88696 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 15247972 is about 3904.8651705277. The cubic root of 15247972 is about 247.9727901122.

The spelling of 15247972 in words is "fifteen million, two hundred forty-seven thousand, nine hundred seventy-two".