12869631 has 16 divisors (see below), whose sum is σ = 20070400. Its totient is φ = 8127864.

The previous prime is 12869609. The next prime is 12869651. The reversal of 12869631 is 13696821.

12869631 is a `hidden beast` number, since 12 + 8 + 6 + 9 + 631 = 666.

12869631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12869631 - 2⁶ = 12869567 is a prime.

It is a super-2 number, since 2×12869631² = 331254804152322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12869651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12031 + ... + 13056.

It is an arithmetic number, because the mean of its divisors is an integer number (1254400).

Almost surely, 2^12869631 is an apocalyptic number.

12869631 is a deficient number, since it is larger than the sum of its proper divisors (7200769).

12869631 is a wasteful number, since it uses less digits than its factorization.

12869631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25115 (or 25109 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12869631 is about 3587.4267936782. The cubic root of 12869631 is about 234.3448236349.

The spelling of 12869631 in words is "twelve million, eight hundred sixty-nine thousand, six hundred thirty-one".