13493957 has 2 divisors, whose sum is σ = 13493958. Its totient is φ = 13493956.

The previous prime is 13493951. The next prime is 13493983. The reversal of 13493957 is 75939431.

13493957 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12630916 + 863041 = 3554^2 + 929^2 .

It is a cyclic number.

It is not a de Polignac number, because 13493957 - 2⁴ = 13493941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13493951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6746978 + 6746979.

It is an arithmetic number, because the mean of its divisors is an integer number (6746979).

Almost surely, 2^13493957 is an apocalyptic number.

It is an amenable number.

13493957 is a deficient number, since it is larger than the sum of its proper divisors (1).

13493957 is an equidigital number, since it uses as much as digits as its factorization.

13493957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 41.

The square root of 13493957 is about 3673.4121739876. The cubic root of 13493957 is about 238.0746241055.

The spelling of 13493957 in words is "thirteen million, four hundred ninety-three thousand, nine hundred fifty-seven".