871580871 has 64 divisors (see below), whose sum is σ = 1588469760. Its totient is φ = 460961280.

The previous prime is 871580861. The next prime is 871580873. The reversal of 871580871 is 178085178.

It is not a de Polignac number, because 871580871 - 2⁵ = 871580839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871580873) 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 63 ways as a sum of consecutive naturals, for example, 193770 + ... + 198216.

It is an arithmetic number, because the mean of its divisors is an integer number (24819840).

Almost surely, 2^871580871 is an apocalyptic number.

871580871 is a deficient number, since it is larger than the sum of its proper divisors (716888889).

871580871 is a wasteful number, since it uses less digits than its factorization.

871580871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541 (or 4535 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 45.

The square root of 871580871 is about 29522.5485180396. The cubic root of 871580871 is about 955.2181444781.

The spelling of 871580871 in words is "eight hundred seventy-one million, five hundred eighty thousand, eight hundred seventy-one".