28566364 has 24 divisors (see below), whose sum is σ = 51383808. Its totient is φ = 13890240.

The previous prime is 28566347. The next prime is 28566371. The reversal of 28566364 is 46366582.

It is a happy number.

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, 26394 + ... + 27454.

It is an arithmetic number, because the mean of its divisors is an integer number (2140992).

Almost surely, 2^28566364 is an apocalyptic number.

It is an amenable number.

28566364 is a deficient number, since it is larger than the sum of its proper divisors (22817444).

28566364 is a wasteful number, since it uses less digits than its factorization.

28566364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245 (or 1243 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 28566364 is about 5344.7510699751. The cubic root of 28566364 is about 305.6926442387.

The spelling of 28566364 in words is "twenty-eight million, five hundred sixty-six thousand, three hundred sixty-four".