28560888 has 24 divisors (see below), whose sum is σ = 77352600. Its totient is φ = 9520272.

The previous prime is 28560869. The next prime is 28560893. The reversal of 28560888 is 88806582.

28560888 is a `hidden beast` number, since 2 + 8 + 560 + 8 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198268 + ... + 198411.

It is an arithmetic number, because the mean of its divisors is an integer number (3223025).

Almost surely, 2^28560888 is an apocalyptic number.

It is an amenable number.

28560888 is an abundant number, since it is smaller than the sum of its proper divisors (48791712).

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

28560888 is a wasteful number, since it uses less digits than its factorization.

28560888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396691 (or 396684 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 28560888 is about 5344.2387671211. The cubic root of 28560888 is about 305.6731098440.

The spelling of 28560888 in words is "twenty-eight million, five hundred sixty thousand, eight hundred eighty-eight".