323280073 has 2 divisors, whose sum is σ = 323280074. Its totient is φ = 323280072.

The previous prime is 323280047. The next prime is 323280091. The reversal of 323280073 is 370082323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267747769 + 55532304 = 16363^2 + 7452^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323280073 is a prime.

It is not a weakly prime, because it can be changed into another prime (323280773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161640036 + 161640037.

It is an arithmetic number, because the mean of its divisors is an integer number (161640037).

Almost surely, 2^323280073 is an apocalyptic number.

It is an amenable number.

323280073 is a deficient number, since it is larger than the sum of its proper divisors (1).

323280073 is an equidigital number, since it uses as much as digits as its factorization.

323280073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 323280073 is about 17979.9909065605. The cubic root of 323280073 is about 686.3194579792.

It can be divided in two parts, 3 and 23280073, that added together give a triangular number (23280076 = T₆₈₂₃).

The spelling of 323280073 in words is "three hundred twenty-three million, two hundred eighty thousand, seventy-three".