327409 has 2 divisors, whose sum is σ = 327410. Its totient is φ = 327408.

The previous prime is 327407. The next prime is 327419. The reversal of 327409 is 904723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327184 + 225 = 572^2 + 15^2 .

It is a cyclic number.

It is not a de Polignac number, because 327409 - 2¹ = 327407 is a prime.

Together with 327407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (327401) 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, 163704 + 163705.

It is an arithmetic number, because the mean of its divisors is an integer number (163705).

2³²⁷⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

327409 is a deficient number, since it is larger than the sum of its proper divisors (1).

327409 is an equidigital number, since it uses as much as digits as its factorization.

327409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 327409 is about 572.1966445200. The cubic root of 327409 is about 68.9228992468.

The spelling of 327409 in words is "three hundred twenty-seven thousand, four hundred nine".