87087880 has 32 divisors (see below), whose sum is σ = 213762240. Its totient is φ = 31668160.

The previous prime is 87087863. The next prime is 87087881. The reversal of 87087880 is 8878078.

It is a self number, because there is not a number n which added to its sum of digits gives 87087880.

It is not an unprimeable number, because it can be changed into a prime (87087881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98524 + ... + 99403.

It is an arithmetic number, because the mean of its divisors is an integer number (6680070).

Almost surely, 2^87087880 is an apocalyptic number.

It is an amenable number.

87087880 is an abundant number, since it is smaller than the sum of its proper divisors (126674360).

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

87087880 is a wasteful number, since it uses less digits than its factorization.

87087880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197949 (or 197945 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 46.

The square root of 87087880 is about 9332.0887265392. The cubic root of 87087880 is about 443.2539075431.

The spelling of 87087880 in words is "eighty-seven million, eighty-seven thousand, eight hundred eighty".