115864870 has 64 divisors (see below), whose sum is σ = 236307456. Its totient is φ = 40538880.

The previous prime is 115864841. The next prime is 115864891. The reversal of 115864870 is 78468511.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377257 + ... + 377563.

It is an arithmetic number, because the mean of its divisors is an integer number (3692304).

Almost surely, 2^115864870 is an apocalyptic number.

115864870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115864870 is an abundant number, since it is smaller than the sum of its proper divisors (120442586).

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

115864870 is a wasteful number, since it uses less digits than its factorization.

115864870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 115864870 is about 10764.0545334925. The cubic root of 115864870 is about 487.5104464121.

The spelling of 115864870 in words is "one hundred fifteen million, eight hundred sixty-four thousand, eight hundred seventy".