12666992 has 20 divisors (see below), whose sum is σ = 26430600. Its totient is φ = 5846208.

The previous prime is 12666967. The next prime is 12667001. The reversal of 12666992 is 29966621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30242 + ... + 30657.

It is an arithmetic number, because the mean of its divisors is an integer number (1321530).

Almost surely, 2^12666992 is an apocalyptic number.

It is an amenable number.

12666992 is an abundant number, since it is smaller than the sum of its proper divisors (13763608).

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

12666992 is a wasteful number, since it uses less digits than its factorization.

12666992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60920 (or 60914 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 12666992 is about 3559.0717891046. The cubic root of 12666992 is about 233.1083509398.

The spelling of 12666992 in words is "twelve million, six hundred sixty-six thousand, nine hundred ninety-two".