12339631 has 2 divisors, whose sum is σ = 12339632. Its totient is φ = 12339630.

The previous prime is 12339623. The next prime is 12339653. The reversal of 12339631 is 13693321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12339631 - 2³ = 12339623 is a prime.

It is a super-2 number, since 2×12339631² = 304532986432322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12339631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12339601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6169815 + 6169816.

It is an arithmetic number, because the mean of its divisors is an integer number (6169816).

Almost surely, 2^12339631 is an apocalyptic number.

12339631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12339631 is an equidigital number, since it uses as much as digits as its factorization.

12339631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 28.

The square root of 12339631 is about 3512.7810919555. The cubic root of 12339631 is about 231.0826775010.

The spelling of 12339631 in words is "twelve million, three hundred thirty-nine thousand, six hundred thirty-one".