116991308 has 12 divisors (see below), whose sum is σ = 233982672. Its totient is φ = 50139120.

The previous prime is 116991247. The next prime is 116991311. The reversal of 116991308 is 803199611.

116991308 is an admirable number.

It is a super-2 number, since 2×116991308² = 27373932295101728, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089103 + ... + 2089158.

It is an arithmetic number, because the mean of its divisors is an integer number (19498556).

Almost surely, 2^116991308 is an apocalyptic number.

It is an amenable number.

116991308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

116991308 is a wasteful number, since it uses less digits than its factorization.

116991308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178272 (or 4178270 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 116991308 is about 10816.2520310873. The cubic root of 116991308 is about 489.0852125733.

The spelling of 116991308 in words is "one hundred sixteen million, nine hundred ninety-one thousand, three hundred eight".