831319479 has 6 divisors (see below), whose sum is σ = 1200794816. Its totient is φ = 554212980.

The previous prime is 831319457. The next prime is 831319513. The reversal of 831319479 is 974913138.

It is not a de Polignac number, because 831319479 - 2¹² = 831315383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831319439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46184407 + ... + 46184424.

Almost surely, 2^831319479 is an apocalyptic number.

831319479 is a deficient number, since it is larger than the sum of its proper divisors (369475337).

831319479 is a wasteful number, since it uses less digits than its factorization.

831319479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92368837 (or 92368834 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 831319479 is about 28832.6113801716. The cubic root of 831319479 is about 940.2773736301.

The spelling of 831319479 in words is "eight hundred thirty-one million, three hundred nineteen thousand, four hundred seventy-nine".