28832172 has 24 divisors (see below), whose sum is σ = 67931136. Its totient is φ = 9517008.

The previous prime is 28832161. The next prime is 28832189. The reversal of 28832172 is 27123882.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10428 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (2830464).

Almost surely, 2^28832172 is an apocalyptic number.

It is an amenable number.

28832172 is an abundant number, since it is smaller than the sum of its proper divisors (39098964).

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

28832172 is a wasteful number, since it uses less digits than its factorization.

28832172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23437 (or 23435 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 28832172 is about 5369.5597584904. The cubic root of 28832172 is about 306.6378680161.

The spelling of 28832172 in words is "twenty-eight million, eight hundred thirty-two thousand, one hundred seventy-two".