831580680 has 64 divisors (see below), whose sum is σ = 2851136640. Its totient is φ = 190075392.

The previous prime is 831580679. The next prime is 831580681. The reversal of 831580680 is 86085138.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (831580679) and next prime (831580681).

It is not an unprimeable number, because it can be changed into a prime (831580681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494149 + ... + 495828.

It is an arithmetic number, because the mean of its divisors is an integer number (44549010).

Almost surely, 2^831580680 is an apocalyptic number.

It is an amenable number.

831580680 is an abundant number, since it is smaller than the sum of its proper divisors (2019555960).

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

831580680 is a wasteful number, since it uses less digits than its factorization.

831580680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989998 (or 989994 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 831580680 is about 28837.1406349520. The cubic root of 831580680 is about 940.3758418598.

The spelling of 831580680 in words is "eight hundred thirty-one million, five hundred eighty thousand, six hundred eighty".