13688371 has 2 divisors, whose sum is σ = 13688372. Its totient is φ = 13688370.

The previous prime is 13688357. The next prime is 13688393. The reversal of 13688371 is 17388631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13688371 - 2⁹ = 13687859 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13688371.

It is not a weakly prime, because it can be changed into another prime (13688071) 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 as a sum of consecutive naturals, namely, 6844185 + 6844186.

It is an arithmetic number, because the mean of its divisors is an integer number (6844186).

Almost surely, 2^13688371 is an apocalyptic number.

13688371 is a deficient number, since it is larger than the sum of its proper divisors (1).

13688371 is an equidigital number, since it uses as much as digits as its factorization.

13688371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 13688371 is about 3699.7798583159. The cubic root of 13688371 is about 239.2125289855.

The spelling of 13688371 in words is "thirteen million, six hundred eighty-eight thousand, three hundred seventy-one".