86187018 has 16 divisors (see below), whose sum is σ = 172534176. Its totient is φ = 28702320.

The previous prime is 86187011. The next prime is 86187019. The reversal of 86187018 is 81078168.

It is not an unprimeable number, because it can be changed into a prime (86187011) 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, 1005 + ... + 13167.

It is an arithmetic number, because the mean of its divisors is an integer number (10783386).

Almost surely, 2^86187018 is an apocalyptic number.

86187018 is an abundant number, since it is smaller than the sum of its proper divisors (86347158).

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

86187018 is a wasteful number, since it uses less digits than its factorization.

86187018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13349.

The product of its (nonzero) digits is 21504, while the sum is 39.

The square root of 86187018 is about 9283.6963543623. The cubic root of 86187018 is about 441.7202252047.

The spelling of 86187018 in words is "eighty-six million, one hundred eighty-seven thousand, eighteen".