324401009 has 2 divisors, whose sum is σ = 324401010. Its totient is φ = 324401008.

The previous prime is 324400997. The next prime is 324401017. The reversal of 324401009 is 900104423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251127409 + 73273600 = 15847^2 + 8560^2 .

It is a cyclic number.

It is not a de Polignac number, because 324401009 - 2⁸ = 324400753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (324401509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162200504 + 162200505.

It is an arithmetic number, because the mean of its divisors is an integer number (162200505).

Almost surely, 2^324401009 is an apocalyptic number.

It is an amenable number.

324401009 is a deficient number, since it is larger than the sum of its proper divisors (1).

324401009 is an equidigital number, since it uses as much as digits as its factorization.

324401009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 324401009 is about 18011.1356943420. The cubic root of 324401009 is about 687.1117871750. Note that the first 3 decimals are identical.

The spelling of 324401009 in words is "three hundred twenty-four million, four hundred one thousand, nine".