86840992 has 24 divisors (see below), whose sum is σ = 195392736. Its totient is φ = 37217472.

The previous prime is 86840953. The next prime is 86841011. The reversal of 86840992 is 29904868.

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 3 ways as a sum of consecutive naturals, for example, 193618 + ... + 194065.

It is an arithmetic number, because the mean of its divisors is an integer number (8141364).

Almost surely, 2^86840992 is an apocalyptic number.

It is an amenable number.

86840992 is an abundant number, since it is smaller than the sum of its proper divisors (108551744).

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

86840992 is a wasteful number, since it uses less digits than its factorization.

86840992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387700 (or 387692 counting only the distinct ones).

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

The square root of 86840992 is about 9318.8514313729. The cubic root of 86840992 is about 442.8346465754.

The spelling of 86840992 in words is "eighty-six million, eight hundred forty thousand, nine hundred ninety-two".