28027508 has 12 divisors (see below), whose sum is σ = 51629760. Its totient is φ = 13276152.

The previous prime is 28027481. The next prime is 28027511. The reversal of 28027508 is 80572082.

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, 184316 + ... + 184467.

It is an arithmetic number, because the mean of its divisors is an integer number (4302480).

Almost surely, 2^28027508 is an apocalyptic number.

It is an amenable number.

28027508 is a deficient number, since it is larger than the sum of its proper divisors (23602252).

28027508 is a wasteful number, since it uses less digits than its factorization.

28027508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368806 (or 368804 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 28027508 is about 5294.1012457262. The cubic root of 28027508 is about 303.7583056996.

The spelling of 28027508 in words is "twenty-eight million, twenty-seven thousand, five hundred eight".