831030 has 16 divisors (see below), whose sum is σ = 1994544. Its totient is φ = 221600.

The previous prime is 831023. The next prime is 831031. The reversal of 831030 is 30138.

It is a super-2 number, since 2×831030² = 1381221721800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13821 + ... + 13880.

It is an arithmetic number, because the mean of its divisors is an integer number (124659).

2⁸³¹⁰³⁰ is an apocalyptic number.

831030 is an abundant number, since it is smaller than the sum of its proper divisors (1163514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

831030 is a wasteful number, since it uses less digits than its factorization.

831030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27711.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 831030 is about 911.6084685873. The cubic root of 831030 is about 94.0168220988.

Adding to 831030 its reverse (30138), we get a palindrome (861168).

The spelling of 831030 in words is "eight hundred thirty-one thousand, thirty".