12716631 has 18 divisors (see below), whose sum is σ = 19209008. Its totient is φ = 8106120.

The previous prime is 12716621. The next prime is 12716633. The reversal of 12716631 is 13661721.

12716631 is a `hidden beast` number, since 1 + 27 + 1 + 6 + 631 = 666.

It is not a de Polignac number, because 12716631 - 2¹⁰ = 12715607 is a prime.

It is a super-2 number, since 2×12716631² = 323425407980322, 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 = 12716595 and 12716604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12716633) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3426 + ... + 6096.

Almost surely, 2^12716631 is an apocalyptic number.

12716631 is a deficient number, since it is larger than the sum of its proper divisors (6492377).

12716631 is a wasteful number, since it uses less digits than its factorization.

12716631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723 (or 2697 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 12716631 is about 3566.0385584006. The cubic root of 12716631 is about 233.4124532139.

The spelling of 12716631 in words is "twelve million, seven hundred sixteen thousand, six hundred thirty-one".