86990824 has 16 divisors (see below), whose sum is σ = 163228320. Its totient is φ = 43463280.

The previous prime is 86990803. The next prime is 86990831. The reversal of 86990824 is 42809968.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10629 + ... + 16939.

It is an arithmetic number, because the mean of its divisors is an integer number (10201770).

Almost surely, 2^86990824 is an apocalyptic number.

It is an amenable number.

86990824 is a deficient number, since it is larger than the sum of its proper divisors (76237496).

86990824 is a wasteful number, since it uses less digits than its factorization.

86990824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040 (or 8036 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 86990824 is about 9326.8871548872. The cubic root of 86990824 is about 443.0891833485.

The spelling of 86990824 in words is "eighty-six million, nine hundred ninety thousand, eight hundred twenty-four".