12664476 has 36 divisors (see below), whose sum is σ = 34924344. Its totient is φ = 3837600.

The previous prime is 12664447. The next prime is 12664481. The reversal of 12664476 is 67446621.

12664476 is a `hidden beast` number, since 1 + 2 + 6 + 644 + 7 + 6 = 666.

12664476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12664476.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15595 + ... + 16386.

Almost surely, 2^12664476 is an apocalyptic number.

It is an amenable number.

12664476 is an abundant number, since it is smaller than the sum of its proper divisors (22259868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12664476 is a wasteful number, since it uses less digits than its factorization.

12664476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32002 (or 31997 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 12664476 is about 3558.7183086049. The cubic root of 12664476 is about 233.0929160877.

The spelling of 12664476 in words is "twelve million, six hundred sixty-four thousand, four hundred seventy-six".