113791986 has 64 divisors (see below), whose sum is σ = 315279360. Its totient is φ = 29555280.

The previous prime is 113791957. The next prime is 113792051. The reversal of 113791986 is 689197311.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9526 + ... + 17841.

It is an arithmetic number, because the mean of its divisors is an integer number (4926240).

Almost surely, 2^113791986 is an apocalyptic number.

113791986 is an abundant number, since it is smaller than the sum of its proper divisors (201487374).

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

113791986 is a wasteful number, since it uses less digits than its factorization.

113791986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27396 (or 27390 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 113791986 is about 10667.3326562923. The cubic root of 113791986 is about 484.5856609364.

The spelling of 113791986 in words is "one hundred thirteen million, seven hundred ninety-one thousand, nine hundred eighty-six".