28686832 has 10 divisors (see below), whose sum is σ = 55580768. Its totient is φ = 14343408.

The previous prime is 28686817. The next prime is 28686857. The reversal of 28686832 is 23868682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 896448 + ... + 896479.

Almost surely, 2^28686832 is an apocalyptic number.

It is an amenable number.

28686832 is a deficient number, since it is larger than the sum of its proper divisors (26893936).

28686832 is a wasteful number, since it uses less digits than its factorization.

28686832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792935 (or 1792929 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 28686832 is about 5356.0089619044. The cubic root of 28686832 is about 306.1217565508.

The spelling of 28686832 in words is "twenty-eight million, six hundred eighty-six thousand, eight hundred thirty-two".