831013 has 4 divisors (see below), whose sum is σ = 867168. Its totient is φ = 794860.

The previous prime is 830989. The next prime is 831023. The reversal of 831013 is 310138.

831013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310138 = 2 ⋅155069.

It is a cyclic number.

It is not a de Polignac number, because 831013 - 2⁵ = 830981 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 (831023) 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, 18043 + ... + 18088.

It is an arithmetic number, because the mean of its divisors is an integer number (216792).

2⁸³¹⁰¹³ is an apocalyptic number.

It is an amenable number.

831013 is a deficient number, since it is larger than the sum of its proper divisors (36155).

831013 is a wasteful number, since it uses less digits than its factorization.

831013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36154.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 831013 is about 911.5991443612. The cubic root of 831013 is about 94.0161810080.

The spelling of 831013 in words is "eight hundred thirty-one thousand, thirteen".