87995964 has 48 divisors (see below), whose sum is σ = 239456000. Its totient is φ = 25140528.

The previous prime is 87995867. The next prime is 87995981. The reversal of 87995964 is 46959978.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6574 + ... + 14805.

Almost surely, 2^87995964 is an apocalyptic number.

87995964 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87995964 is an abundant number, since it is smaller than the sum of its proper divisors (151460036).

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

87995964 is a wasteful number, since it uses less digits than its factorization.

87995964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21407 (or 21391 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The square root of 87995964 is about 9380.6163976575. The cubic root of 87995964 is about 444.7892180223.

The spelling of 87995964 in words is "eighty-seven million, nine hundred ninety-five thousand, nine hundred sixty-four".