328323973 has 2 divisors, whose sum is σ = 328323974. Its totient is φ = 328323972.

The previous prime is 328323929. The next prime is 328324001. The reversal of 328323973 is 379323823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268369924 + 59954049 = 16382^2 + 7743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328323973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328323473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164161986 + 164161987.

It is an arithmetic number, because the mean of its divisors is an integer number (164161987).

Almost surely, 2^328323973 is an apocalyptic number.

It is an amenable number.

328323973 is a deficient number, since it is larger than the sum of its proper divisors (1).

328323973 is an equidigital number, since it uses as much as digits as its factorization.

328323973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 40.

The square root of 328323973 is about 18119.7122769651. The cubic root of 328323973 is about 689.8704321581.

The spelling of 328323973 in words is "three hundred twenty-eight million, three hundred twenty-three thousand, nine hundred seventy-three".