86990008 has 32 divisors (see below), whose sum is σ = 186969600. Its totient is φ = 37168992.

The previous prime is 86989993. The next prime is 86990011. The reversal of 86990008 is 80009968.

It is a happy number.

It is a super-2 number, since 2×86990008² = 15134522983680128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17941 + ... + 22267.

It is an arithmetic number, because the mean of its divisors is an integer number (5842800).

Almost surely, 2^86990008 is an apocalyptic number.

It is an amenable number.

86990008 is an abundant number, since it is smaller than the sum of its proper divisors (99979592).

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

86990008 is a wasteful number, since it uses less digits than its factorization.

86990008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699 (or 4695 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 86990008 is about 9326.8434102862. The cubic root of 86990008 is about 443.0877979077.

The spelling of 86990008 in words is "eighty-six million, nine hundred ninety thousand, eight".