870081580 has 12 divisors (see below), whose sum is σ = 1827171360. Its totient is φ = 348032624.

The previous prime is 870081551. The next prime is 870081587. The reversal of 870081580 is 85180078.

870081580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (870081587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21752020 + ... + 21752059.

It is an arithmetic number, because the mean of its divisors is an integer number (152264280).

Almost surely, 2^870081580 is an apocalyptic number.

It is an amenable number.

870081580 is an abundant number, since it is smaller than the sum of its proper divisors (957089780).

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

870081580 is a wasteful number, since it uses less digits than its factorization.

870081580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43504088 (or 43504086 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 870081580 is about 29497.1452856035. The cubic root of 870081580 is about 954.6701089127.

It can be divided in two parts, 87008 and 1580, that added together give a palindrome (88588).

The spelling of 870081580 in words is "eight hundred seventy million, eighty-one thousand, five hundred eighty".