326605673 has 2 divisors, whose sum is σ = 326605674. Its totient is φ = 326605672.

The previous prime is 326605667. The next prime is 326605691. The reversal of 326605673 is 376506623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212372329 + 114233344 = 14573^2 + 10688^2 .

It is a cyclic number.

It is not a de Polignac number, because 326605673 - 2¹² = 326601577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (326605603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163302836 + 163302837.

It is an arithmetic number, because the mean of its divisors is an integer number (163302837).

Almost surely, 2^326605673 is an apocalyptic number.

It is an amenable number.

326605673 is a deficient number, since it is larger than the sum of its proper divisors (1).

326605673 is an equidigital number, since it uses as much as digits as its factorization.

326605673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 38.

The square root of 326605673 is about 18072.2348645650. The cubic root of 326605673 is about 688.6648360064.

The spelling of 326605673 in words is "three hundred twenty-six million, six hundred five thousand, six hundred seventy-three".