87390080 has 32 divisors (see below), whose sum is σ = 208918440. Its totient is φ = 34955776.

The previous prime is 87390073. The next prime is 87390103. The reversal of 87390080 is 8009378.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 87390080.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 67634 + ... + 68913.

Almost surely, 2^87390080 is an apocalyptic number.

87390080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87390080 is an abundant number, since it is smaller than the sum of its proper divisors (121528360).

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

87390080 is a wasteful number, since it uses less digits than its factorization.

87390080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136566 (or 136554 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 87390080 is about 9348.2661493990. The cubic root of 87390080 is about 443.7660212426.

The spelling of 87390080 in words is "eighty-seven million, three hundred ninety thousand, eighty".