86390187 has 8 divisors (see below), whose sum is σ = 124047504. Its totient is φ = 53163168.

The previous prime is 86390179. The next prime is 86390189. The reversal of 86390187 is 78109368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86390187 - 2³ = 86390179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86390189) 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, 1107528 + ... + 1107605.

It is an arithmetic number, because the mean of its divisors is an integer number (15505938).

Almost surely, 2^86390187 is an apocalyptic number.

86390187 is a deficient number, since it is larger than the sum of its proper divisors (37657317).

86390187 is a wasteful number, since it uses less digits than its factorization.

86390187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215149.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 86390187 is about 9294.6321605537. The cubic root of 86390187 is about 442.0670424434.

The spelling of 86390187 in words is "eighty-six million, three hundred ninety thousand, one hundred eighty-seven".