987085170 has 64 divisors (see below), whose sum is σ = 2636064000. Its totient is φ = 262839168.

The previous prime is 987085157. The next prime is 987085199. The reversal of 987085170 is 71580789.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216171 + ... + 220689.

It is an arithmetic number, because the mean of its divisors is an integer number (41188500).

Almost surely, 2^987085170 is an apocalyptic number.

987085170 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

987085170 is an abundant number, since it is smaller than the sum of its proper divisors (1648978830).

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

987085170 is a wasteful number, since it uses less digits than its factorization.

987085170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 987085170 is about 31417.9116110540. The cubic root of 987085170 is about 995.6763900046.

The spelling of 987085170 in words is "nine hundred eighty-seven million, eighty-five thousand, one hundred seventy".