15287972 has 24 divisors (see below), whose sum is σ = 31229184. Its totient is φ = 6412032.

The previous prime is 15287971. The next prime is 15287977. The reversal of 15287972 is 27978251.

It is not an unprimeable number, because it can be changed into a prime (15287971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4493 + ... + 7124.

It is an arithmetic number, because the mean of its divisors is an integer number (1301216).

Almost surely, 2^15287972 is an apocalyptic number.

It is an amenable number.

15287972 is an abundant number, since it is smaller than the sum of its proper divisors (15941212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15287972 is a wasteful number, since it uses less digits than its factorization.

15287972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11675 (or 11673 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 15287972 is about 3909.9836316793. The cubic root of 15287972 is about 248.1894364264.

The spelling of 15287972 in words is "fifteen million, two hundred eighty-seven thousand, nine hundred seventy-two".