87898764 has 24 divisors (see below), whose sum is σ = 211714048. Its totient is φ = 28354320.

The previous prime is 87898763. The next prime is 87898777. The reversal of 87898764 is 46789878.

It is not an unprimeable number, because it can be changed into a prime (87898763) 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, 117772 + ... + 118515.

Almost surely, 2^87898764 is an apocalyptic number.

It is an amenable number.

87898764 is an abundant number, since it is smaller than the sum of its proper divisors (123815284).

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

87898764 is a wasteful number, since it uses less digits than its factorization.

87898764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236325 (or 236323 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The square root of 87898764 is about 9375.4340699511. The cubic root of 87898764 is about 444.6253868709.

The spelling of 87898764 in words is "eighty-seven million, eight hundred ninety-eight thousand, seven hundred sixty-four".