13670631 has 24 divisors (see below), whose sum is σ = 21390096. Its totient is φ = 8363520.

The previous prime is 13670623. The next prime is 13670639. The reversal of 13670631 is 13607631.

13670631 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13670623) and next prime (13670639).

It is not a de Polignac number, because 13670631 - 2³ = 13670623 is a prime.

It is a super-2 number, since 2×13670631² = 373772303876322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13670595 and 13670604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13670639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38551 + ... + 38903.

It is an arithmetic number, because the mean of its divisors is an integer number (891254).

Almost surely, 2^13670631 is an apocalyptic number.

13670631 is a deficient number, since it is larger than the sum of its proper divisors (7719465).

13670631 is a wasteful number, since it uses less digits than its factorization.

13670631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 13670631 is about 3697.3816411077. The cubic root of 13670631 is about 239.1091452490.

The spelling of 13670631 in words is "thirteen million, six hundred seventy thousand, six hundred thirty-one".