12769631 has 16 divisors (see below), whose sum is σ = 14976000. Its totient is φ = 10663488.

The previous prime is 12769619. The next prime is 12769637. The reversal of 12769631 is 13696721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12769631 is a prime.

It is a super-2 number, since 2×12769631² = 326126951752322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12769591 and 12769600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12769637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64070 + ... + 64268.

It is an arithmetic number, because the mean of its divisors is an integer number (936000).

Almost surely, 2^12769631 is an apocalyptic number.

12769631 is a deficient number, since it is larger than the sum of its proper divisors (2206369).

12769631 is a wasteful number, since it uses less digits than its factorization.

12769631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its digits is 13608, while the sum is 35.

The square root of 12769631 is about 3573.4620468112. The cubic root of 12769631 is about 233.7362736084.

The spelling of 12769631 in words is "twelve million, seven hundred sixty-nine thousand, six hundred thirty-one".