831229 has 4 divisors (see below), whose sum is σ = 949984. Its totient is φ = 712476.

The previous prime is 831221. The next prime is 831239. The reversal of 831229 is 922138.

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.

It is a cyclic number.

It is not a de Polignac number, because 831229 - 2³ = 831221 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831221) 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, 59367 + ... + 59380.

It is an arithmetic number, because the mean of its divisors is an integer number (237496).

2⁸³¹²²⁹ is an apocalyptic number.

It is an amenable number.

831229 is a deficient number, since it is larger than the sum of its proper divisors (118755).

831229 is a wasteful number, since it uses less digits than its factorization.

831229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118754.

The product of its digits is 864, while the sum is 25.

The square root of 831229 is about 911.7176097893. The cubic root of 831229 is about 94.0243259813.

Subtracting 831229 from its reverse (922138), we obtain a palindrome (90909).

The spelling of 831229 in words is "eight hundred thirty-one thousand, two hundred twenty-nine".