871736580 has 480 divisors, whose sum is σ = 3319481088. Its totient is φ = 188697600.

The previous prime is 871736573. The next prime is 871736599. The reversal of 871736580 is 85637178.

871736580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 159 ways as a sum of consecutive naturals, for example, 12277945 + ... + 12278015.

Almost surely, 2^871736580 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 871736580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1659740544).

871736580 is an abundant number, since it is smaller than the sum of its proper divisors (2447744508).

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

871736580 is a wasteful number, since it uses less digits than its factorization.

871736580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 871736580 is about 29525.1855201623. The cubic root of 871736580 is about 955.2750247251.

The spelling of 871736580 in words is "eight hundred seventy-one million, seven hundred thirty-six thousand, five hundred eighty".