86598018 has 64 divisors (see below), whose sum is σ = 208454400. Its totient is φ = 26490240.

The previous prime is 86597981. The next prime is 86598037. The reversal of 86598018 is 81089568.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197043 + ... + 197481.

It is an arithmetic number, because the mean of its divisors is an integer number (3257100).

Almost surely, 2^86598018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86598018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104227200).

86598018 is an abundant number, since it is smaller than the sum of its proper divisors (121856382).

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

86598018 is a wasteful number, since it uses less digits than its factorization.

86598018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 86598018 is about 9305.8056072540. The cubic root of 86598018 is about 442.4212557381.

The spelling of 86598018 in words is "eighty-six million, five hundred ninety-eight thousand, eighteen".