87108660 has 36 divisors (see below), whose sum is σ = 264230148. Its totient is φ = 23228928.

The previous prime is 87108617. The next prime is 87108683. The reversal of 87108660 is 6680178.

It can be written as a sum of positive squares in 2 ways, for example, as 59166864 + 27941796 = 7692^2 + 5286^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 241789 + ... + 242148.

Almost surely, 2^87108660 is an apocalyptic number.

It is an amenable number.

87108660 is an abundant number, since it is smaller than the sum of its proper divisors (177121488).

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

87108660 is a wasteful number, since it uses less digits than its factorization.

87108660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483952 (or 483947 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 87108660 is about 9333.2020228858. The cubic root of 87108660 is about 443.2891596115.

The spelling of 87108660 in words is "eighty-seven million, one hundred eight thousand, six hundred sixty".