28564486 has 12 divisors (see below), whose sum is σ = 45221652. Its totient is φ = 13530204.

The previous prime is 28564477. The next prime is 28564499. The reversal of 28564486 is 68446582.

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 5 ways as a sum of consecutive naturals, for example, 19060 + ... + 20503.

It is an arithmetic number, because the mean of its divisors is an integer number (3768471).

Almost surely, 2^28564486 is an apocalyptic number.

28564486 is a deficient number, since it is larger than the sum of its proper divisors (16657166).

28564486 is a wasteful number, since it uses less digits than its factorization.

28564486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39603 (or 39584 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 28564486 is about 5344.5753807014. The cubic root of 28564486 is about 305.6859451786.

The spelling of 28564486 in words is "twenty-eight million, five hundred sixty-four thousand, four hundred eighty-six".