87822864 has 60 divisors (see below), whose sum is σ = 258726000. Its totient is φ = 27732672.

The previous prime is 87822803. The next prime is 87822877. The reversal of 87822864 is 46822878.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13314 + ... + 18785.

It is an arithmetic number, because the mean of its divisors is an integer number (4312100).

Almost surely, 2^87822864 is an apocalyptic number.

It is an amenable number.

87822864 is an abundant number, since it is smaller than the sum of its proper divisors (170903136).

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

87822864 is a wasteful number, since it uses less digits than its factorization.

87822864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32132 (or 32123 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 87822864 is about 9371.3853831757. The cubic root of 87822864 is about 444.4973729928.

The spelling of 87822864 in words is "eighty-seven million, eight hundred twenty-two thousand, eight hundred sixty-four".