12631693 has 2 divisors, whose sum is σ = 12631694. Its totient is φ = 12631692.

The previous prime is 12631679. The next prime is 12631699. The reversal of 12631693 is 39613621.

12631693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11744329 + 887364 = 3427^2 + 942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12631693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12631699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315846 + 6315847.

It is an arithmetic number, because the mean of its divisors is an integer number (6315847).

Almost surely, 2^12631693 is an apocalyptic number.

It is an amenable number.

12631693 is a deficient number, since it is larger than the sum of its proper divisors (1).

12631693 is an equidigital number, since it uses as much as digits as its factorization.

12631693 is an evil number, because the sum of its binary digits is even.

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

The square root of 12631693 is about 3554.1093117686. The cubic root of 12631693 is about 232.8916157971.

The spelling of 12631693 in words is "twelve million, six hundred thirty-one thousand, six hundred ninety-three".