86999884 has 24 divisors (see below), whose sum is σ = 157948560. Its totient is φ = 41880384.

The previous prime is 86999873. The next prime is 86999911. The reversal of 86999884 is 48899968.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50542 + ... + 52234.

It is an arithmetic number, because the mean of its divisors is an integer number (6581190).

Almost surely, 2^86999884 is an apocalyptic number.

It is an amenable number.

86999884 is a deficient number, since it is larger than the sum of its proper divisors (70948676).

86999884 is a wasteful number, since it uses less digits than its factorization.

86999884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2167 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 61.

The square root of 86999884 is about 9327.3728348340. The cubic root of 86999884 is about 443.1045652338.

The spelling of 86999884 in words is "eighty-six million, nine hundred ninety-nine thousand, eight hundred eighty-four".