13992631 has 2 divisors, whose sum is σ = 13992632. Its totient is φ = 13992630.

The previous prime is 13992619. The next prime is 13992637. The reversal of 13992631 is 13629931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13992631 - 2⁵ = 13992599 is a prime.

It is a super-2 number, since 2×13992631² = 391587444604322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13992637) 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 as a sum of consecutive naturals, namely, 6996315 + 6996316.

It is an arithmetic number, because the mean of its divisors is an integer number (6996316).

Almost surely, 2^13992631 is an apocalyptic number.

13992631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13992631 is an equidigital number, since it uses as much as digits as its factorization.

13992631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 34.

The square root of 13992631 is about 3740.6725331149. The cubic root of 13992631 is about 240.9719324762.

The spelling of 13992631 in words is "thirteen million, nine hundred ninety-two thousand, six hundred thirty-one".