117768858 has 16 divisors (see below), whose sum is σ = 236298816. Its totient is φ = 39129440.

The previous prime is 117768853. The next prime is 117768953. The reversal of 117768858 is 858867711.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117768858.

It is not an unprimeable number, because it can be changed into a prime (117768853) 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, 29691 + ... + 33422.

It is an arithmetic number, because the mean of its divisors is an integer number (14768676).

Almost surely, 2^117768858 is an apocalyptic number.

117768858 is an abundant number, since it is smaller than the sum of its proper divisors (118529958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117768858 is a wasteful number, since it uses less digits than its factorization.

117768858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63429.

The product of its digits is 752640, while the sum is 51.

The square root of 117768858 is about 10852.1361030905. The cubic root of 117768858 is about 490.1663436349.

The spelling of 117768858 in words is "one hundred seventeen million, seven hundred sixty-eight thousand, eight hundred fifty-eight".