117856859 has 8 divisors (see below), whose sum is σ = 119138208. Its totient is φ = 116582400.

The previous prime is 117856813. The next prime is 117856891. The reversal of 117856859 is 958658711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117856859 is a prime.

It is a super-3 number, since 3×117856859³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117826859) 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, 37289 + ... + 40325.

It is an arithmetic number, because the mean of its divisors is an integer number (14892276).

Almost surely, 2^117856859 is an apocalyptic number.

117856859 is a deficient number, since it is larger than the sum of its proper divisors (1281349).

117856859 is a wasteful number, since it uses less digits than its factorization.

117856859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445.

The product of its digits is 604800, while the sum is 50.

The square root of 117856859 is about 10856.1898933281. The cubic root of 117856859 is about 490.2884030360.

The spelling of 117856859 in words is "one hundred seventeen million, eight hundred fifty-six thousand, eight hundred fifty-nine".