13693457 has 2 divisors, whose sum is σ = 13693458. Its totient is φ = 13693456.

The previous prime is 13693417. The next prime is 13693489. The reversal of 13693457 is 75439631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10010896 + 3682561 = 3164^2 + 1919^2 .

It is a cyclic number.

It is not a de Polignac number, because 13693457 - 2⁸ = 13693201 is a prime.

It is a super-2 number, since 2×13693457² = 375021529221698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13693457.

It is not a weakly prime, because it can be changed into another prime (13693417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6846728 + 6846729.

It is an arithmetic number, because the mean of its divisors is an integer number (6846729).

Almost surely, 2^13693457 is an apocalyptic number.

It is an amenable number.

13693457 is a deficient number, since it is larger than the sum of its proper divisors (1).

13693457 is an equidigital number, since it uses as much as digits as its factorization.

13693457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 13693457 is about 3700.4671326739. The cubic root of 13693457 is about 239.2421522881.

The spelling of 13693457 in words is "thirteen million, six hundred ninety-three thousand, four hundred fifty-seven".