12664677 has 16 divisors (see below), whose sum is σ = 18498240. Its totient is φ = 7671552.

The previous prime is 12664669. The next prime is 12664681. The reversal of 12664677 is 77646621.

12664677 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12664677 - 2³ = 12664669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664607) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2803 + ... + 5760.

It is an arithmetic number, because the mean of its divisors is an integer number (1156140).

Almost surely, 2^12664677 is an apocalyptic number.

12664677 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12664677 is a deficient number, since it is larger than the sum of its proper divisors (5833563).

12664677 is a wasteful number, since it uses less digits than its factorization.

12664677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8612.

The product of its digits is 84672, while the sum is 39.

The square root of 12664677 is about 3558.7465489973. The cubic root of 12664677 is about 233.0941492333.

The spelling of 12664677 in words is "twelve million, six hundred sixty-four thousand, six hundred seventy-seven".