870545500 has 96 divisors (see below), whose sum is σ = 2100204288. Its totient is φ = 312584000.

The previous prime is 870545491. The next prime is 870545521. The reversal of 870545500 is 5545078.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 455547 + ... + 457453.

It is an arithmetic number, because the mean of its divisors is an integer number (21877128).

Almost surely, 2^870545500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870545500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050102144).

870545500 is an abundant number, since it is smaller than the sum of its proper divisors (1229658788).

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

870545500 is a wasteful number, since it uses less digits than its factorization.

870545500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020 (or 2008 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 870545500 is about 29505.0080494820. The cubic root of 870545500 is about 954.8397527236.

The spelling of 870545500 in words is "eight hundred seventy million, five hundred forty-five thousand, five hundred".