28576808 has 16 divisors (see below), whose sum is σ = 57703380. Its totient is φ = 13189248.

The previous prime is 28576789. The next prime is 28576819. The reversal of 28576808 is 80867582.

It can be written as a sum of positive squares in 2 ways, for example, as 24423364 + 4153444 = 4942^2 + 2038^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 137285 + ... + 137492.

Almost surely, 2^28576808 is an apocalyptic number.

It is an amenable number.

28576808 is an abundant number, since it is smaller than the sum of its proper divisors (29126572).

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

28576808 is a wasteful number, since it uses less digits than its factorization.

28576808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274796 (or 274792 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 28576808 is about 5345.7280140314. The cubic root of 28576808 is about 305.7298939329.

The spelling of 28576808 in words is "twenty-eight million, five hundred seventy-six thousand, eight hundred eight".