12664885 has 8 divisors (see below), whose sum is σ = 15390720. Its totient is φ = 10003344.

The previous prime is 12664877. The next prime is 12664889. The reversal of 12664885 is 58846621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12664885 - 2³ = 12664877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15637 + ... + 16426.

It is an arithmetic number, because the mean of its divisors is an integer number (1923840).

Almost surely, 2^12664885 is an apocalyptic number.

It is an amenable number.

12664885 is a deficient number, since it is larger than the sum of its proper divisors (2725835).

12664885 is an equidigital number, since it uses as much as digits as its factorization.

12664885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32147.

The product of its digits is 92160, while the sum is 40.

The square root of 12664885 is about 3558.7757726499. The cubic root of 12664885 is about 233.0954253105.

The spelling of 12664885 in words is "twelve million, six hundred sixty-four thousand, eight hundred eighty-five".