12679931 has 8 divisors (see below), whose sum is σ = 14310000. Its totient is φ = 11129440.

The previous prime is 12679913. The next prime is 12679939. The reversal of 12679931 is 13997621.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12679931 is a prime.

It is a super-2 number, since 2×12679931² = 321561300329522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12679939) 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, 19556 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (1788750).

Almost surely, 2^12679931 is an apocalyptic number.

12679931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12679931 is a deficient number, since it is larger than the sum of its proper divisors (1630069).

12679931 is a wasteful number, since it uses less digits than its factorization.

12679931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39789.

The product of its digits is 20412, while the sum is 38.

The square root of 12679931 is about 3560.8890743745. The cubic root of 12679931 is about 233.1876952848.

The spelling of 12679931 in words is "twelve million, six hundred seventy-nine thousand, nine hundred thirty-one".