830831 has 4 divisors (see below), whose sum is σ = 857664. Its totient is φ = 804000.

The previous prime is 830827. The next prime is 830833. The reversal of 830831 is 138038.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138038 = 2 ⋅69019.

It is a cyclic number.

It is not a de Polignac number, because 830831 - 2² = 830827 is a prime.

It is a super-2 number, since 2×830831² = 1380560301122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 830797 and 830806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13370 + ... + 13431.

It is an arithmetic number, because the mean of its divisors is an integer number (214416).

2⁸³⁰⁸³¹ is an apocalyptic number.

830831 is a deficient number, since it is larger than the sum of its proper divisors (26833).

830831 is a wasteful number, since it uses less digits than its factorization.

830831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26832.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 830831 is about 911.4993143168. The cubic root of 830831 is about 94.0093170182.

Adding to 830831 its reverse (138038), we get a palindrome (968869).

It can be divided in two parts, 830 and 831, that added together give a palindrome (1661).

The spelling of 830831 in words is "eight hundred thirty thousand, eight hundred thirty-one".