326494009 has 2 divisors, whose sum is σ = 326494010. Its totient is φ = 326494008.

The previous prime is 326494001. The next prime is 326494019. The reversal of 326494009 is 900494623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172659600 + 153834409 = 13140^2 + 12403^2 .

It is a cyclic number.

It is not a de Polignac number, because 326494009 - 2³ = 326494001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (326494001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163247004 + 163247005.

It is an arithmetic number, because the mean of its divisors is an integer number (163247005).

Almost surely, 2^326494009 is an apocalyptic number.

It is an amenable number.

326494009 is a deficient number, since it is larger than the sum of its proper divisors (1).

326494009 is an equidigital number, since it uses as much as digits as its factorization.

326494009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 326494009 is about 18069.1452205133. The cubic root of 326494009 is about 688.5863439674.

The spelling of 326494009 in words is "three hundred twenty-six million, four hundred ninety-four thousand, nine".