12717631 has 8 divisors (see below), whose sum is σ = 13849200. Its totient is φ = 11632320.

The previous prime is 12717623. The next prime is 12717647. The reversal of 12717631 is 13671721.

12717631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12717631 - 2³ = 12717623 is a prime.

It is a super-2 number, since 2×12717631² = 323476276504322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12717631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12717671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10990 + ... + 12091.

It is an arithmetic number, because the mean of its divisors is an integer number (1731150).

Almost surely, 2^12717631 is an apocalyptic number.

12717631 is a deficient number, since it is larger than the sum of its proper divisors (1131569).

12717631 is a wasteful number, since it uses less digits than its factorization.

12717631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23129.

The product of its digits is 1764, while the sum is 28.

The square root of 12717631 is about 3566.1787672521. The cubic root of 12717631 is about 233.4185713526.

The spelling of 12717631 in words is "twelve million, seven hundred seventeen thousand, six hundred thirty-one".