87880560 has 40 divisors (see below), whose sum is σ = 272430480. Its totient is φ = 23434752.

The previous prime is 87880549. The next prime is 87880561. The reversal of 87880560 is 6508878.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87880561) 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, 182845 + ... + 183324.

It is an arithmetic number, because the mean of its divisors is an integer number (6810762).

Almost surely, 2^87880560 is an apocalyptic number.

87880560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87880560 is an abundant number, since it is smaller than the sum of its proper divisors (184549920).

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

87880560 is a wasteful number, since it uses less digits than its factorization.

87880560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366185 (or 366179 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 87880560 is about 9374.4631846309. The cubic root of 87880560 is about 444.5946904993.

The spelling of 87880560 in words is "eighty-seven million, eight hundred eighty thousand, five hundred sixty".