117755657 has 4 divisors (see below), whose sum is σ = 118602960. Its totient is φ = 116908356.

The previous prime is 117755641. The next prime is 117755713. The reversal of 117755657 is 756557711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117755657 - 2⁴ = 117755641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117755857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423443 + ... + 423720.

It is an arithmetic number, because the mean of its divisors is an integer number (29650740).

Almost surely, 2^117755657 is an apocalyptic number.

It is an amenable number.

117755657 is a deficient number, since it is larger than the sum of its proper divisors (847303).

117755657 is an equidigital number, since it uses as much as digits as its factorization.

117755657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847302.

The product of its digits is 257250, while the sum is 44.

The square root of 117755657 is about 10851.5278647755. The cubic root of 117755657 is about 490.1480283015.

The spelling of 117755657 in words is "one hundred seventeen million, seven hundred fifty-five thousand, six hundred fifty-seven".