86590138 has 8 divisors (see below), whose sum is σ = 133395732. Its totient is φ = 42124896.

The previous prime is 86590123. The next prime is 86590139. The reversal of 86590138 is 83109568.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74597769 + 11992369 = 8637^2 + 3463^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 86590138.

It is not an unprimeable number, because it can be changed into a prime (86590139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584995 + ... + 585142.

Almost surely, 2^86590138 is an apocalyptic number.

86590138 is a deficient number, since it is larger than the sum of its proper divisors (46805594).

86590138 is a wasteful number, since it uses less digits than its factorization.

86590138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170176.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 86590138 is about 9305.3822060139. The cubic root of 86590138 is about 442.4078359343.

The spelling of 86590138 in words is "eighty-six million, five hundred ninety thousand, one hundred thirty-eight".