323326813 has 2 divisors, whose sum is σ = 323326814. Its totient is φ = 323326812.

The previous prime is 323326799. The next prime is 323326823. The reversal of 323326813 is 318623323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270865764 + 52461049 = 16458^2 + 7243^2 .

It is an emirp because it is prime and its reverse (318623323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323326813 - 2²⁵ = 289772381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323326823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161663406 + 161663407.

It is an arithmetic number, because the mean of its divisors is an integer number (161663407).

Almost surely, 2^323326813 is an apocalyptic number.

It is an amenable number.

323326813 is a deficient number, since it is larger than the sum of its proper divisors (1).

323326813 is an equidigital number, since it uses as much as digits as its factorization.

323326813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 323326813 is about 17981.2906377712. The cubic root of 323326813 is about 686.3525325259.

The spelling of 323326813 in words is "three hundred twenty-three million, three hundred twenty-six thousand, eight hundred thirteen".