28555008 has 36 divisors (see below), whose sum is σ = 76000008. Its totient is φ = 9518080.

The previous prime is 28554979. The next prime is 28555049. The reversal of 28555008 is 80055582.

It is a self number, because there is not a number n which added to its sum of digits gives 28555008.

It is a congruent number.

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, 17823 + ... + 19358.

Almost surely, 2^28555008 is an apocalyptic number.

It is an amenable number.

28555008 is an abundant number, since it is smaller than the sum of its proper divisors (47445000).

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

28555008 is an equidigital number, since it uses as much as digits as its factorization.

28555008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37200 (or 37186 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 28555008 is about 5343.6886136825. The cubic root of 28555008 is about 305.6521314901.

The spelling of 28555008 in words is "twenty-eight million, five hundred fifty-five thousand, eight".