327386921 has 2 divisors, whose sum is σ = 327386922. Its totient is φ = 327386920.

The previous prime is 327386897. The next prime is 327386951. The reversal of 327386921 is 129683723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172633321 + 154753600 = 13139^2 + 12440^2 .

It is a cyclic number.

It is not a de Polignac number, because 327386921 - 2¹⁰ = 327385897 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 (327386951) 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, 163693460 + 163693461.

It is an arithmetic number, because the mean of its divisors is an integer number (163693461).

Almost surely, 2^327386921 is an apocalyptic number.

It is an amenable number.

327386921 is a deficient number, since it is larger than the sum of its proper divisors (1).

327386921 is an equidigital number, since it uses as much as digits as its factorization.

327386921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 327386921 is about 18093.8365472887. The cubic root of 327386921 is about 689.2134992781.

The spelling of 327386921 in words is "three hundred twenty-seven million, three hundred eighty-six thousand, nine hundred twenty-one".