117790278 has 16 divisors (see below), whose sum is σ = 238899456. Its totient is φ = 38710280.

The previous prime is 117790259. The next prime is 117790279. The reversal of 117790278 is 872097711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117790279) 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, 137826 + ... + 138677.

It is an arithmetic number, because the mean of its divisors is an integer number (14931216).

Almost surely, 2^117790278 is an apocalyptic number.

117790278 is an abundant number, since it is smaller than the sum of its proper divisors (121109178).

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

117790278 is a wasteful number, since it uses less digits than its factorization.

117790278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276579.

The product of its (nonzero) digits is 49392, while the sum is 42.

The square root of 117790278 is about 10853.1229606966. The cubic root of 117790278 is about 490.1960592625.

The spelling of 117790278 in words is "one hundred seventeen million, seven hundred ninety thousand, two hundred seventy-eight".