326831 has 2 divisors, whose sum is σ = 326832. Its totient is φ = 326830.

The previous prime is 326779. The next prime is 326863. The reversal of 326831 is 138623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 326831 - 2¹⁰ = 325807 is a prime.

It is a super-2 number, since 2×326831² = 213637005122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 326797 and 326806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326881) 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 as a sum of consecutive naturals, namely, 163415 + 163416.

It is an arithmetic number, because the mean of its divisors is an integer number (163416).

2³²⁶⁸³¹ is an apocalyptic number.

326831 is a deficient number, since it is larger than the sum of its proper divisors (1).

326831 is an equidigital number, since it uses as much as digits as its factorization.

326831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 326831 is about 571.6913502931. The cubic root of 326831 is about 68.8823170784.

The spelling of 326831 in words is "three hundred twenty-six thousand, eight hundred thirty-one".