13682891 has 2 divisors, whose sum is σ = 13682892. Its totient is φ = 13682890.

The previous prime is 13682887. The next prime is 13682897. The reversal of 13682891 is 19828631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13682891 - 2² = 13682887 is a prime.

It is a super-2 number, since 2×13682891² = 374443012235762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13682897) 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, 6841445 + 6841446.

It is an arithmetic number, because the mean of its divisors is an integer number (6841446).

Almost surely, 2^13682891 is an apocalyptic number.

13682891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13682891 is an equidigital number, since it uses as much as digits as its factorization.

13682891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 13682891 is about 3699.0391995760. The cubic root of 13682891 is about 239.1806026243.

The spelling of 13682891 in words is "thirteen million, six hundred eighty-two thousand, eight hundred ninety-one".