28564364 has 12 divisors (see below), whose sum is σ = 50090544. Its totient is φ = 14252784.

The previous prime is 28564357. The next prime is 28564373. The reversal of 28564364 is 46346582.

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, 5087 + ... + 9110.

It is an arithmetic number, because the mean of its divisors is an integer number (4174212).

Almost surely, 2^28564364 is an apocalyptic number.

It is an amenable number.

28564364 is a deficient number, since it is larger than the sum of its proper divisors (21526180).

28564364 is a wasteful number, since it uses less digits than its factorization.

28564364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14704 (or 14702 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 28564364 is about 5344.5639672475. The cubic root of 28564364 is about 305.6855099793.

The spelling of 28564364 in words is "twenty-eight million, five hundred sixty-four thousand, three hundred sixty-four".