12664774 has 16 divisors (see below), whose sum is σ = 19500912. Its totient is φ = 6166368.

The previous prime is 12664741. The next prime is 12664781. The reversal of 12664774 is 47746621.

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 7 ways as a sum of consecutive naturals, for example, 16912 + ... + 17644.

It is an arithmetic number, because the mean of its divisors is an integer number (1218807).

Almost surely, 2^12664774 is an apocalyptic number.

12664774 is a deficient number, since it is larger than the sum of its proper divisors (6836138).

12664774 is a wasteful number, since it uses less digits than its factorization.

12664774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951.

The product of its digits is 56448, while the sum is 37.

The square root of 12664774 is about 3558.7601773651. The cubic root of 12664774 is about 233.0947443287.

The spelling of 12664774 in words is "twelve million, six hundred sixty-four thousand, seven hundred seventy-four".