13386931 has 2 divisors, whose sum is σ = 13386932. Its totient is φ = 13386930.

The previous prime is 13386917. The next prime is 13386937. The reversal of 13386931 is 13968331.

13386931 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13386931 is a prime.

It is a super-2 number, since 2×13386931² = 358419843197522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13386937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6693465 + 6693466.

It is an arithmetic number, because the mean of its divisors is an integer number (6693466).

Almost surely, 2^13386931 is an apocalyptic number.

13386931 is a deficient number, since it is larger than the sum of its proper divisors (1).

13386931 is an equidigital number, since it uses as much as digits as its factorization.

13386931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 13386931 is about 3658.8155187164. The cubic root of 13386931 is about 237.4435308037.

The spelling of 13386931 in words is "thirteen million, three hundred eighty-six thousand, nine hundred thirty-one".