87997084 has 24 divisors (see below), whose sum is σ = 178980480. Its totient is φ = 37073136.

The previous prime is 87997081. The next prime is 87997093. The reversal of 87997084 is 48079978.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87997081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24982 + ... + 28285.

It is an arithmetic number, because the mean of its divisors is an integer number (7457520).

Almost surely, 2^87997084 is an apocalyptic number.

It is an amenable number.

87997084 is an abundant number, since it is smaller than the sum of its proper divisors (90983396).

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

87997084 is a wasteful number, since it uses less digits than its factorization.

87997084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53337 (or 53335 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 87997084 is about 9380.6760950371. The cubic root of 87997084 is about 444.7911050854.

The spelling of 87997084 in words is "eighty-seven million, nine hundred ninety-seven thousand, eighty-four".