12668697 has 16 divisors (see below), whose sum is σ = 18823680. Its totient is φ = 8420976.

The previous prime is 12668659. The next prime is 12668717. The reversal of 12668697 is 79686621.

It is not a de Polignac number, because 12668697 - 2⁷ = 12668569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12668627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16003 + ... + 16775.

It is an arithmetic number, because the mean of its divisors is an integer number (1176480).

Almost surely, 2^12668697 is an apocalyptic number.

It is an amenable number.

12668697 is a deficient number, since it is larger than the sum of its proper divisors (6154983).

12668697 is an equidigital number, since it uses as much as digits as its factorization.

12668697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389 (or 1383 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 12668697 is about 3559.3113097901. The cubic root of 12668697 is about 233.1188094056.

The spelling of 12668697 in words is "twelve million, six hundred sixty-eight thousand, six hundred ninety-seven".