987880725 has 96 divisors (see below), whose sum is σ = 1975151360. Its totient is φ = 481178880.

The previous prime is 987880721. The next prime is 987880739. The reversal of 987880725 is 527088789.

987880725 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 987880725 - 2² = 987880721 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987880721) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 903279 + ... + 904371.

Almost surely, 2^987880725 is an apocalyptic number.

It is an amenable number.

987880725 is a deficient number, since it is larger than the sum of its proper divisors (987270635).

987880725 is a wasteful number, since it uses less digits than its factorization.

987880725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The square root of 987880725 is about 31430.5699121095. The cubic root of 987880725 is about 995.9438112445.

The spelling of 987880725 in words is "nine hundred eighty-seven million, eight hundred eighty thousand, seven hundred twenty-five".