12928564 has 12 divisors (see below), whose sum is σ = 24681888. Its totient is φ = 5876600.

The previous prime is 12928561. The next prime is 12928567. The reversal of 12928564 is 46582921.

It is an interprime number because it is at equal distance from previous prime (12928561) and next prime (12928567).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12928561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146872 + ... + 146959.

It is an arithmetic number, because the mean of its divisors is an integer number (2056824).

Almost surely, 2^12928564 is an apocalyptic number.

It is an amenable number.

12928564 is a deficient number, since it is larger than the sum of its proper divisors (11753324).

12928564 is a wasteful number, since it uses less digits than its factorization.

12928564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293846 (or 293844 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 12928564 is about 3595.6312380443. The cubic root of 12928564 is about 234.7019852933.

The spelling of 12928564 in words is "twelve million, nine hundred twenty-eight thousand, five hundred sixty-four".