12693631 has 8 divisors (see below), whose sum is σ = 13294944. Its totient is φ = 12096480.

The previous prime is 12693599. The next prime is 12693647. The reversal of 12693631 is 13639621.

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 12693631 - 2⁵ = 12693599 is a prime.

It is a super-2 number, since 2×12693631² = 322256535928322, 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 = 12693593 and 12693602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12693671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6421 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (1661868).

Almost surely, 2^12693631 is an apocalyptic number.

12693631 is a deficient number, since it is larger than the sum of its proper divisors (601313).

12693631 is a wasteful number, since it uses less digits than its factorization.

12693631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081.

The product of its digits is 5832, while the sum is 31.

The square root of 12693631 is about 3562.8122319314. The cubic root of 12693631 is about 233.2716474125.

It can be divided in two parts, 1269 and 3631, that added together give a square (4900 = 70²).

The spelling of 12693631 in words is "twelve million, six hundred ninety-three thousand, six hundred thirty-one".