12631663 has 16 divisors (see below), whose sum is σ = 15068160. Its totient is φ = 10454400.

The previous prime is 12631643. The next prime is 12631667. The reversal of 12631663 is 36613621.

It is a de Polignac number, because none of the positive numbers 2^k-12631663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631667) 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, 4708 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (941760).

Almost surely, 2^12631663 is an apocalyptic number.

12631663 is a deficient number, since it is larger than the sum of its proper divisors (2436497).

12631663 is a wasteful number, since it uses less digits than its factorization.

12631663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238.

The product of its digits is 3888, while the sum is 28.

The square root of 12631663 is about 3554.1050912994. The cubic root of 12631663 is about 232.8914314261.

It can be divided in two parts, 1263 and 1663, that added together give a triangular number (2926 = T₇₆).

The spelling of 12631663 in words is "twelve million, six hundred thirty-one thousand, six hundred sixty-three".