324809 has 2 divisors, whose sum is σ = 324810. Its totient is φ = 324808.

The previous prime is 324799. The next prime is 324811. The reversal of 324809 is 908423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299209 + 25600 = 547^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 324809 - 2¹² = 320713 is a prime.

It is a Sophie Germain prime.

Together with 324811, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 324809.

It is not a weakly prime, because it can be changed into another prime (324839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162404 + 162405.

It is an arithmetic number, because the mean of its divisors is an integer number (162405).

2³²⁴⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

324809 is a deficient number, since it is larger than the sum of its proper divisors (1).

324809 is an equidigital number, since it uses as much as digits as its factorization.

324809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 324809 is about 569.9201698484. The cubic root of 324809 is about 68.7399720911.

The spelling of 324809 in words is "three hundred twenty-four thousand, eight hundred nine".