28567012 has 12 divisors (see below), whose sum is σ = 52166016. Its totient is φ = 13662440.

The previous prime is 28566983. The next prime is 28567031. The reversal of 28567012 is 21076582.

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, 155164 + ... + 155347.

It is an arithmetic number, because the mean of its divisors is an integer number (4347168).

Almost surely, 2^28567012 is an apocalyptic number.

It is an amenable number.

28567012 is a deficient number, since it is larger than the sum of its proper divisors (23599004).

28567012 is a wasteful number, since it uses less digits than its factorization.

28567012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310538 (or 310536 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 28567012 is about 5344.8116898540. The cubic root of 28567012 is about 305.6949556674.

The spelling of 28567012 in words is "twenty-eight million, five hundred sixty-seven thousand, twelve".