831969 has 12 divisors (see below), whose sum is σ = 1215396. Its totient is φ = 548352.

The previous prime is 831967. The next prime is 831983. The reversal of 831969 is 969138.

831969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 360000 + 471969 = 600^2 + 687^2 .

It is not a de Polignac number, because 831969 - 2¹ = 831967 is a prime.

It is a super-2 number, since 2×831969² = 1384344833922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (831967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397 + ... + 1349.

It is an arithmetic number, because the mean of its divisors is an integer number (101283).

2⁸³¹⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

831969 is a deficient number, since it is larger than the sum of its proper divisors (383427).

831969 is a wasteful number, since it uses less digits than its factorization.

831969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1053 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 831969 is about 912.1233469219. The cubic root of 831969 is about 94.0522193633.

The spelling of 831969 in words is "eight hundred thirty-one thousand, nine hundred sixty-nine".