327632321 has 2 divisors, whose sum is σ = 327632322. Its totient is φ = 327632320.

The previous prime is 327632317. The next prime is 327632323. The reversal of 327632321 is 123236723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186022321 + 141610000 = 13639^2 + 11900^2 .

It is a cyclic number.

It is not a de Polignac number, because 327632321 - 2² = 327632317 is a prime.

Together with 327632323, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (327632323) 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, 163816160 + 163816161.

It is an arithmetic number, because the mean of its divisors is an integer number (163816161).

Almost surely, 2^327632321 is an apocalyptic number.

It is an amenable number.

327632321 is a deficient number, since it is larger than the sum of its proper divisors (1).

327632321 is an equidigital number, since it uses as much as digits as its factorization.

327632321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 29.

The square root of 327632321 is about 18100.6165917076. The cubic root of 327632321 is about 689.3856612678.

The spelling of 327632321 in words is "three hundred twenty-seven million, six hundred thirty-two thousand, three hundred twenty-one".