506831 has 6 divisors (see below), whose sum is σ = 549000. Its totient is φ = 467688.

The previous prime is 506809. The next prime is 506837. The reversal of 506831 is 138605.

It is not a de Polignac number, because 506831 - 2¹⁸ = 244687 is a prime.

It is a super-2 number, since 2×506831² = 513755325122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 506797 and 506806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1331 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (91500).

2⁵⁰⁶⁸³¹ is an apocalyptic number.

506831 is a deficient number, since it is larger than the sum of its proper divisors (42169).

506831 is a wasteful number, since it uses less digits than its factorization.

506831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025 (or 3012 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 506831 is about 711.9206416448. The cubic root of 506831 is about 79.7298701499.

The spelling of 506831 in words is "five hundred six thousand, eight hundred thirty-one".