86398998 has 32 divisors (see below), whose sum is σ = 209101824. Its totient is φ = 23233152.

The previous prime is 86398987. The next prime is 86399011. The reversal of 86398998 is 89989368.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59790 + ... + 61217.

It is an arithmetic number, because the mean of its divisors is an integer number (6534432).

Almost surely, 2^86398998 is an apocalyptic number.

86398998 is an abundant number, since it is smaller than the sum of its proper divisors (122702826).

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

86398998 is a wasteful number, since it uses less digits than its factorization.

86398998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121036.

The product of its digits is 6718464, while the sum is 60.

The square root of 86398998 is about 9295.1061317233. The cubic root of 86398998 is about 442.0820708490.

The spelling of 86398998 in words is "eighty-six million, three hundred ninety-eight thousand, nine hundred ninety-eight".