987687560 has 16 divisors (see below), whose sum is σ = 2222297100. Its totient is φ = 395075008.

The previous prime is 987687517. The next prime is 987687577. The reversal of 987687560 is 65786789.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 975812644 + 11874916 = 31238^2 + 3446^2 .

It is a junction number, because it is equal to n+sod(n) for n = 987687496 and 987687505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12346055 + ... + 12346134.

Almost surely, 2^987687560 is an apocalyptic number.

It is an amenable number.

987687560 is an abundant number, since it is smaller than the sum of its proper divisors (1234609540).

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

987687560 is a wasteful number, since it uses less digits than its factorization.

987687560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24692200 (or 24692196 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 56.

The square root of 987687560 is about 31427.4968777343. The cubic root of 987687560 is about 995.8788931419.

The spelling of 987687560 in words is "nine hundred eighty-seven million, six hundred eighty-seven thousand, five hundred sixty".