12564670 has 16 divisors (see below), whose sum is σ = 23600160. Its totient is φ = 4807264.

The previous prime is 12564667. The next prime is 12564679. The reversal of 12564670 is 7646521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27085 + ... + 27544.

It is an arithmetic number, because the mean of its divisors is an integer number (1475010).

Almost surely, 2^12564670 is an apocalyptic number.

12564670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12564670 is a deficient number, since it is larger than the sum of its proper divisors (11035490).

12564670 is a wasteful number, since it uses less digits than its factorization.

12564670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54659.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 12564670 is about 3544.6678264684. The cubic root of 12564670 is about 232.4789821830.

The spelling of 12564670 in words is "twelve million, five hundred sixty-four thousand, six hundred seventy".