831230 has 16 divisors (see below), whose sum is σ = 1512864. Its totient is φ = 328800.
The previous prime is 831221. The next prime is 831239. The reversal of 831230 is 32138.
It is an interprime number because it is at equal distance from previous prime (831221) and next prime (831239).
It is a junction number, because it is equal to n+sod(n) for n = 831199 and 831208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (831239) by changing a digit.
831230 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599 + ... + 1421.
It is an arithmetic number, because the mean of its divisors is an integer number (94554).
2831230 is an apocalyptic number.
831230 is a deficient number, since it is larger than the sum of its proper divisors (681634).
831230 is a wasteful number, since it uses less digits than its factorization.
831230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 931.
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 831230 is about 911.7181582046. The cubic root of 831230 is about 94.0243636862.
Adding to 831230 its reverse (32138), we get a palindrome (863368).
The spelling of 831230 in words is "eight hundred thirty-one thousand, two hundred thirty".
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