16396931 has 2 divisors, whose sum is σ = 16396932. Its totient is φ = 16396930.

The previous prime is 16396927. The next prime is 16396951. The reversal of 16396931 is 13969361.

16396931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16396931 - 2² = 16396927 is a prime.

It is a super-2 number, since 2×16396931² = 537718692437522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16396951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198465 + 8198466.

It is an arithmetic number, because the mean of its divisors is an integer number (8198466).

Almost surely, 2^16396931 is an apocalyptic number.

16396931 is a deficient number, since it is larger than the sum of its proper divisors (1).

16396931 is an equidigital number, since it uses as much as digits as its factorization.

16396931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 38.

The square root of 16396931 is about 4049.3124107680. The cubic root of 16396931 is about 254.0509693734.

The spelling of 16396931 in words is "sixteen million, three hundred ninety-six thousand, nine hundred thirty-one".