28566464 has 28 divisors (see below), whose sum is σ = 57067704. Its totient is φ = 14187264.

The previous prime is 28566457. The next prime is 28566487. The reversal of 28566464 is 46466582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8627 + ... + 11469.

Almost surely, 2^28566464 is an apocalyptic number.

It is an amenable number.

28566464 is a deficient number, since it is larger than the sum of its proper divisors (28501240).

28566464 is a wasteful number, since it uses less digits than its factorization.

28566464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012 (or 3002 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 28566464 is about 5344.7604249396. The cubic root of 28566464 is about 305.6930009430.

The spelling of 28566464 in words is "twenty-eight million, five hundred sixty-six thousand, four hundred sixty-four".