117683778 has 32 divisors (see below), whose sum is σ = 249080832. Its totient is φ = 36990800.

The previous prime is 117683749. The next prime is 117683803. The reversal of 117683778 is 877386711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3793 + ... + 15803.

It is an arithmetic number, because the mean of its divisors is an integer number (7783776).

Almost surely, 2^117683778 is an apocalyptic number.

117683778 is an abundant number, since it is smaller than the sum of its proper divisors (131397054).

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

117683778 is a wasteful number, since it uses less digits than its factorization.

117683778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12110.

The product of its digits is 395136, while the sum is 48.

The square root of 117683778 is about 10848.2154292768. The cubic root of 117683778 is about 490.0482779032.

The spelling of 117683778 in words is "one hundred seventeen million, six hundred eighty-three thousand, seven hundred seventy-eight".