28204675 has 12 divisors (see below), whose sum is σ = 36180720. Its totient is φ = 21785120.

The previous prime is 28204667. The next prime is 28204681. The reversal of 28204675 is 57640282.

It is not a de Polignac number, because 28204675 - 2³ = 28204667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28204675.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18727 + ... + 20176.

It is an arithmetic number, because the mean of its divisors is an integer number (3015060).

Almost surely, 2^28204675 is an apocalyptic number.

28204675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28204675 is a deficient number, since it is larger than the sum of its proper divisors (7976045).

28204675 is a wasteful number, since it uses less digits than its factorization.

28204675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38942 (or 38937 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28204675 is about 5310.8073774145. The cubic root of 28204675 is about 304.3969990719.

The spelling of 28204675 in words is "twenty-eight million, two hundred four thousand, six hundred seventy-five".