323344309 has 2 divisors, whose sum is σ = 323344310. Its totient is φ = 323344308.

The previous prime is 323344297. The next prime is 323344313. The reversal of 323344309 is 903443323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321198084 + 2146225 = 17922^2 + 1465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323344309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323344379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161672154 + 161672155.

It is an arithmetic number, because the mean of its divisors is an integer number (161672155).

Almost surely, 2^323344309 is an apocalyptic number.

It is an amenable number.

323344309 is a deficient number, since it is larger than the sum of its proper divisors (1).

323344309 is an equidigital number, since it uses as much as digits as its factorization.

323344309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 323344309 is about 17981.7771368683. Note that the first 3 decimals coincide. The cubic root of 323344309 is about 686.3649123707.

The spelling of 323344309 in words is "three hundred twenty-three million, three hundred forty-four thousand, three hundred nine".