117573657 has 16 divisors (see below), whose sum is σ = 161596800. Its totient is φ = 76003200.

The previous prime is 117573647. The next prime is 117573661. The reversal of 117573657 is 756375711.

It is not a de Polignac number, because 117573657 - 2⁴ = 117573641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117573637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8469 + ... + 17517.

It is an arithmetic number, because the mean of its divisors is an integer number (10099800).

Almost surely, 2^117573657 is an apocalyptic number.

It is an amenable number.

117573657 is a deficient number, since it is larger than the sum of its proper divisors (44023143).

117573657 is an equidigital number, since it uses as much as digits as its factorization.

117573657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184.

The product of its digits is 154350, while the sum is 42.

The square root of 117573657 is about 10843.1387061127. The cubic root of 117573657 is about 489.8953781909.

The spelling of 117573657 in words is "one hundred seventeen million, five hundred seventy-three thousand, six hundred fifty-seven".