87990888 has 32 divisors (see below), whose sum is σ = 220248000. Its totient is φ = 29294208.

The previous prime is 87990869. The next prime is 87990913. The reversal of 87990888 is 88809978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23788 + ... + 27236.

It is an arithmetic number, because the mean of its divisors is an integer number (6882750).

Almost surely, 2^87990888 is an apocalyptic number.

It is an amenable number.

87990888 is an abundant number, since it is smaller than the sum of its proper divisors (132257112).

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

87990888 is a wasteful number, since it uses less digits than its factorization.

87990888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 57.

The square root of 87990888 is about 9380.3458358421. The cubic root of 87990888 is about 444.7806653820.

The spelling of 87990888 in words is "eighty-seven million, nine hundred ninety thousand, eight hundred eighty-eight".