28972264 has 16 divisors (see below), whose sum is σ = 57182400. Its totient is φ = 13723632.

The previous prime is 28972253. The next prime is 28972271. The reversal of 28972264 is 46227982.

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, 95152 + ... + 95455.

It is an arithmetic number, because the mean of its divisors is an integer number (3573900).

Almost surely, 2^28972264 is an apocalyptic number.

It is an amenable number.

28972264 is a deficient number, since it is larger than the sum of its proper divisors (28210136).

28972264 is a wasteful number, since it uses less digits than its factorization.

28972264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190632 (or 190628 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 28972264 is about 5382.5889681453. The cubic root of 28972264 is about 307.1337044531.

The spelling of 28972264 in words is "twenty-eight million, nine hundred seventy-two thousand, two hundred sixty-four".