28973932 has 24 divisors (see below), whose sum is σ = 54906656. Its totient is φ = 13298688.

The previous prime is 28973927. The next prime is 28973939. The reversal of 28973932 is 23937982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28973939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8593 + ... + 11479.

Almost surely, 2^28973932 is an apocalyptic number.

It is an amenable number.

28973932 is a deficient number, since it is larger than the sum of its proper divisors (25932724).

28973932 is a wasteful number, since it uses less digits than its factorization.

28973932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3095 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 28973932 is about 5382.7439099404. The cubic root of 28973932 is about 307.1395984717.

The spelling of 28973932 in words is "twenty-eight million, nine hundred seventy-three thousand, nine hundred thirty-two".