327131329 has 4 divisors (see below), whose sum is σ = 373864384. Its totient is φ = 280398276.

The previous prime is 327131297. The next prime is 327131359. The reversal of 327131329 is 923131723.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 327131329 - 2⁵ = 327131297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 327131329.

It is not an unprimeable number, because it can be changed into a prime (327131359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23366517 + ... + 23366530.

It is an arithmetic number, because the mean of its divisors is an integer number (93466096).

Almost surely, 2^327131329 is an apocalyptic number.

It is an amenable number.

327131329 is a deficient number, since it is larger than the sum of its proper divisors (46733055).

327131329 is an equidigital number, since it uses as much as digits as its factorization.

327131329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46733054.

The product of its digits is 6804, while the sum is 31.

The square root of 327131329 is about 18086.7722106516. The cubic root of 327131329 is about 689.0340955333.

The spelling of 327131329 in words is "three hundred twenty-seven million, one hundred thirty-one thousand, three hundred twenty-nine".