831224 has 8 divisors (see below), whose sum is σ = 1558560. Its totient is φ = 415608.

The previous prime is 831221. The next prime is 831239. The reversal of 831224 is 422138.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 831196 and 831205.

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 as a sum of consecutive naturals, namely, 51944 + ... + 51959.

It is an arithmetic number, because the mean of its divisors is an integer number (194820).

2⁸³¹²²⁴ is an apocalyptic number.

It is an amenable number.

831224 is a deficient number, since it is larger than the sum of its proper divisors (727336).

831224 is a wasteful number, since it uses less digits than its factorization.

831224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103909 (or 103905 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 831224 is about 911.7148677081. The cubic root of 831224 is about 94.0241374562.

The spelling of 831224 in words is "eight hundred thirty-one thousand, two hundred twenty-four".