327012989 has 2 divisors, whose sum is σ = 327012990. Its totient is φ = 327012988.

The previous prime is 327012953. The next prime is 327013033. The reversal of 327012989 is 989210723.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304781764 + 22231225 = 17458^2 + 4715^2 .

It is a cyclic number.

It is not a de Polignac number, because 327012989 - 2²⁴ = 310235773 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

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

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327017989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163506494 + 163506495.

It is an arithmetic number, because the mean of its divisors is an integer number (163506495).

Almost surely, 2^327012989 is an apocalyptic number.

It is an amenable number.

327012989 is a deficient number, since it is larger than the sum of its proper divisors (1).

327012989 is an equidigital number, since it uses as much as digits as its factorization.

327012989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 327012989 is about 18083.5004631294. The cubic root of 327012989 is about 688.9509993148.

The spelling of 327012989 in words is "three hundred twenty-seven million, twelve thousand, nine hundred eighty-nine".