86598138 has 16 divisors (see below), whose sum is σ = 188941536. Its totient is φ = 26241840.

The previous prime is 86598137. The next prime is 86598139. The reversal of 86598138 is 83189568.

It is an interprime number because it is at equal distance from previous prime (86598137) and next prime (86598139).

It is not an unprimeable number, because it can be changed into a prime (86598137) 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, 655981 + ... + 656112.

It is an arithmetic number, because the mean of its divisors is an integer number (11808846).

Almost surely, 2^86598138 is an apocalyptic number.

86598138 is an abundant number, since it is smaller than the sum of its proper divisors (102343398).

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

86598138 is a wasteful number, since it uses less digits than its factorization.

86598138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312109.

The product of its digits is 414720, while the sum is 48.

The square root of 86598138 is about 9305.8120548397. The cubic root of 86598138 is about 442.4214600943.

It can be divided in two parts, 86598 and 138, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 86598138 in words is "eighty-six million, five hundred ninety-eight thousand, one hundred thirty-eight".