82831 has 4 divisors (see below), whose sum is σ = 94672. Its totient is φ = 70992.

The previous prime is 82813. The next prime is 82837. The reversal of 82831 is 13828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82831 - 2⁵ = 82799 is a prime.

It is a super-2 number, since 2×82831² = 13721949122, which contains 22 as substring.

It is a Duffinian number.

82831 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82837) 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, 5910 + ... + 5923.

It is an arithmetic number, because the mean of its divisors is an integer number (23668).

2⁸²⁸³¹ is an apocalyptic number.

82831 is a deficient number, since it is larger than the sum of its proper divisors (11841).

82831 is a wasteful number, since it uses less digits than its factorization.

82831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11840.

The product of its digits is 384, while the sum is 22.

The square root of 82831 is about 287.8037525815. The cubic root of 82831 is about 43.5910805759.

The spelling of 82831 in words is "eighty-two thousand, eight hundred thirty-one".