28590812 has 6 divisors (see below), whose sum is σ = 50033928. Its totient is φ = 14295404.

The previous prime is 28590803. The next prime is 28590833. The reversal of 28590812 is 21809582.

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, 3573848 + ... + 3573855.

It is an arithmetic number, because the mean of its divisors is an integer number (8338988).

Almost surely, 2^28590812 is an apocalyptic number.

It is an amenable number.

28590812 is a deficient number, since it is larger than the sum of its proper divisors (21443116).

28590812 is a wasteful number, since it uses less digits than its factorization.

28590812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147707 (or 7147705 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28590812 is about 5347.0376845502. The cubic root of 28590812 is about 305.7798265246.

The spelling of 28590812 in words is "twenty-eight million, five hundred ninety thousand, eight hundred twelve".