13937657 has 2 divisors, whose sum is σ = 13937658. Its totient is φ = 13937656.

The previous prime is 13937617. The next prime is 13937683. The reversal of 13937657 is 75673931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11316496 + 2621161 = 3364^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 13937657 - 2⁶ = 13937593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13937617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6968828 + 6968829.

It is an arithmetic number, because the mean of its divisors is an integer number (6968829).

Almost surely, 2^13937657 is an apocalyptic number.

It is an amenable number.

13937657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13937657 is an equidigital number, since it uses as much as digits as its factorization.

13937657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 41.

The square root of 13937657 is about 3733.3171577031. The cubic root of 13937657 is about 240.6559428808.

The spelling of 13937657 in words is "thirteen million, nine hundred thirty-seven thousand, six hundred fifty-seven".