987876564 has 24 divisors (see below), whose sum is σ = 2307076800. Its totient is φ = 329001984.

The previous prime is 987876553. The next prime is 987876577. The reversal of 987876564 is 465678789.

It is a junction number, because it is equal to n+sod(n) for n = 987876498 and 987876507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21864 + ... + 49535.

It is an arithmetic number, because the mean of its divisors is an integer number (96128200).

Almost surely, 2^987876564 is an apocalyptic number.

It is an amenable number.

987876564 is an abundant number, since it is smaller than the sum of its proper divisors (1319200236).

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

987876564 is a wasteful number, since it uses less digits than its factorization.

987876564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72559 (or 72557 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 60.

The square root of 987876564 is about 31430.5037185216. The cubic root of 987876564 is about 995.9424129218.

The spelling of 987876564 in words is "nine hundred eighty-seven million, eight hundred seventy-six thousand, five hundred sixty-four".