28372924 has 12 divisors (see below), whose sum is σ = 49721224. Its totient is φ = 14166864.

The previous prime is 28372901. The next prime is 28372931. The reversal of 28372924 is 42927382.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359 + ... + 7654.

Almost surely, 2^28372924 is an apocalyptic number.

It is an amenable number.

28372924 is a deficient number, since it is larger than the sum of its proper divisors (21348300).

28372924 is a wasteful number, since it uses less digits than its factorization.

28372924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9804 (or 9802 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 28372924 is about 5326.6240715861. The cubic root of 28372924 is about 305.0010713928.

The spelling of 28372924 in words is "twenty-eight million, three hundred seventy-two thousand, nine hundred twenty-four".