831479564 has 6 divisors (see below), whose sum is σ = 1455089244. Its totient is φ = 415739780.

The previous prime is 831479557. The next prime is 831479569. The reversal of 831479564 is 465974138.

It is not an unprimeable number, because it can be changed into a prime (831479569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103934942 + ... + 103934949.

It is an arithmetic number, because the mean of its divisors is an integer number (242514874).

Almost surely, 2^831479564 is an apocalyptic number.

It is an amenable number.

831479564 is a deficient number, since it is larger than the sum of its proper divisors (623609680).

831479564 is a wasteful number, since it uses less digits than its factorization.

831479564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207869895 (or 207869893 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 831479564 is about 28835.3873565104. The cubic root of 831479564 is about 940.3377253345.

It can be divided in two parts, 8314 and 79564, that added together give a palindrome (87878).

The spelling of 831479564 in words is "eight hundred thirty-one million, four hundred seventy-nine thousand, five hundred sixty-four".