117850857 has 8 divisors (see below), whose sum is σ = 159123840. Its totient is φ = 77572560.

The previous prime is 117850823. The next prime is 117850877. The reversal of 117850857 is 758058711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117850857 - 2¹⁰ = 117849833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117850877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248394 + ... + 248867.

It is an arithmetic number, because the mean of its divisors is an integer number (19890480).

Almost surely, 2^117850857 is an apocalyptic number.

It is an amenable number.

117850857 is a deficient number, since it is larger than the sum of its proper divisors (41272983).

117850857 is an equidigital number, since it uses as much as digits as its factorization.

117850857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497343.

The product of its (nonzero) digits is 78400, while the sum is 42.

The square root of 117850857 is about 10855.9134576506. The cubic root of 117850857 is about 490.2800800557.

The spelling of 117850857 in words is "one hundred seventeen million, eight hundred fifty thousand, eight hundred fifty-seven".