13920937 has 2 divisors, whose sum is σ = 13920938. Its totient is φ = 13920936.

The previous prime is 13920923. The next prime is 13920941. The reversal of 13920937 is 73902931.

13920937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13920361 + 576 = 3731^2 + 24^2 .

It is a cyclic number.

It is not a de Polignac number, because 13920937 - 2¹¹ = 13918889 is a prime.

It is not a weakly prime, because it can be changed into another prime (13920947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6960468 + 6960469.

It is an arithmetic number, because the mean of its divisors is an integer number (6960469).

Almost surely, 2^13920937 is an apocalyptic number.

It is an amenable number.

13920937 is a deficient number, since it is larger than the sum of its proper divisors (1).

13920937 is an equidigital number, since it uses as much as digits as its factorization.

13920937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13920937 is about 3731.0771903031. The cubic root of 13920937 is about 240.5596718590.

The spelling of 13920937 in words is "thirteen million, nine hundred twenty thousand, nine hundred thirty-seven".