28859504 has 20 divisors (see below), whose sum is σ = 57106464. Its totient is φ = 14122368.

The previous prime is 28859497. The next prime is 28859533. The reversal of 28859504 is 40595882.

It is a super-2 number, since 2×28859504² = 1665741942252032, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) 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 3 ways as a sum of consecutive naturals, for example, 18437 + ... + 19940.

Almost surely, 2^28859504 is an apocalyptic number.

It is an amenable number.

28859504 is a deficient number, since it is larger than the sum of its proper divisors (28246960).

28859504 is a wasteful number, since it uses less digits than its factorization.

28859504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38432 (or 38426 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 28859504 is about 5372.1042432179. The cubic root of 28859504 is about 306.7347317936.

The spelling of 28859504 in words is "twenty-eight million, eight hundred fifty-nine thousand, five hundred four".