113865986 has 32 divisors (see below), whose sum is σ = 187742016. Its totient is φ = 51480000.

The previous prime is 113865971. The next prime is 113865989. The reversal of 113865986 is 689568311.

It is a self number, because there is not a number n which added to its sum of digits gives 113865986.

It is not an unprimeable number, because it can be changed into a prime (113865989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343841 + ... + 344171.

It is an arithmetic number, because the mean of its divisors is an integer number (5866938).

Almost surely, 2^113865986 is an apocalyptic number.

113865986 is a deficient number, since it is larger than the sum of its proper divisors (73876030).

113865986 is a wasteful number, since it uses less digits than its factorization.

113865986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578.

The product of its digits is 311040, while the sum is 47.

The square root of 113865986 is about 10670.8006260074. The cubic root of 113865986 is about 484.6906817138.

The spelling of 113865986 in words is "one hundred thirteen million, eight hundred sixty-five thousand, nine hundred eighty-six".