28636008 has 32 divisors (see below), whose sum is σ = 72230400. Its totient is φ = 9459968.

The previous prime is 28635977. The next prime is 28636037. The reversal of 28636008 is 80063682.

It is a self number, because there is not a number n which added to its sum of digits gives 28636008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568 + ... + 7991.

It is an arithmetic number, because the mean of its divisors is an integer number (2257200).

Almost surely, 2^28636008 is an apocalyptic number.

It is an amenable number.

28636008 is an abundant number, since it is smaller than the sum of its proper divisors (43594392).

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

28636008 is a wasteful number, since it uses less digits than its factorization.

28636008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681 (or 10677 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28636008 is about 5351.2622809950. The cubic root of 28636008 is about 305.9408660135.

The spelling of 28636008 in words is "twenty-eight million, six hundred thirty-six thousand, eight".