326452993 has 2 divisors, whose sum is σ = 326452994. Its totient is φ = 326452992.

The previous prime is 326452991. The next prime is 326453021. The reversal of 326452993 is 399254623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303909489 + 22543504 = 17433^2 + 4748^2 .

It is a cyclic number.

It is not a de Polignac number, because 326452993 - 2¹ = 326452991 is a prime.

Together with 326452991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (326452991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163226496 + 163226497.

It is an arithmetic number, because the mean of its divisors is an integer number (163226497).

Almost surely, 2^326452993 is an apocalyptic number.

It is an amenable number.

326452993 is a deficient number, since it is larger than the sum of its proper divisors (1).

326452993 is an equidigital number, since it uses as much as digits as its factorization.

326452993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 43.

The square root of 326452993 is about 18068.0102114206. The cubic root of 326452993 is about 688.5575080731.

The spelling of 326452993 in words is "three hundred twenty-six million, four hundred fifty-two thousand, nine hundred ninety-three".