28534684 has 24 divisors (see below), whose sum is σ = 50824368. Its totient is φ = 14016000.

The previous prime is 28534679. The next prime is 28534691. The reversal of 28534684 is 48643582.

It is a hoax number, since the sum of its digits (40) 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 7 ways as a sum of consecutive naturals, for example, 97242 + ... + 97534.

It is an arithmetic number, because the mean of its divisors is an integer number (2117682).

Almost surely, 2^28534684 is an apocalyptic number.

It is an amenable number.

28534684 is a deficient number, since it is larger than the sum of its proper divisors (22289684).

28534684 is a wasteful number, since it uses less digits than its factorization.

28534684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 643 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 28534684 is about 5341.7865925175. The cubic root of 28534684 is about 305.5795984069.

It can be divided in two parts, 285 and 34684, that added together give a square (34969 = 187²).

The spelling of 28534684 in words is "twenty-eight million, five hundred thirty-four thousand, six hundred eighty-four".