28583764 has 12 divisors (see below), whose sum is σ = 54569088. Its totient is φ = 12992600.

The previous prime is 28583747. The next prime is 28583773. The reversal of 28583764 is 46738582.

It is a self number, because there is not a number n which added to its sum of digits gives 28583764.

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, 324772 + ... + 324859.

It is an arithmetic number, because the mean of its divisors is an integer number (4547424).

Almost surely, 2^28583764 is an apocalyptic number.

It is an amenable number.

28583764 is a deficient number, since it is larger than the sum of its proper divisors (25985324).

28583764 is a wasteful number, since it uses less digits than its factorization.

28583764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649646 (or 649644 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 28583764 is about 5346.3785874178. The cubic root of 28583764 is about 305.7546982499.

The spelling of 28583764 in words is "twenty-eight million, five hundred eighty-three thousand, seven hundred sixty-four".