327961169 has 2 divisors, whose sum is σ = 327961170. Its totient is φ = 327961168.

The previous prime is 327961157. The next prime is 327961177. The reversal of 327961169 is 961169723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319980544 + 7980625 = 17888^2 + 2825^2 .

It is an emirp because it is prime and its reverse (961169723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 327961169 - 2²⁴ = 311183953 is a prime.

It is a super-2 number, since 2×327961169² = 215117056743693122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (327961189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163980584 + 163980585.

It is an arithmetic number, because the mean of its divisors is an integer number (163980585).

Almost surely, 2^327961169 is an apocalyptic number.

It is an amenable number.

327961169 is a deficient number, since it is larger than the sum of its proper divisors (1).

327961169 is an equidigital number, since it uses as much as digits as its factorization.

327961169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 327961169 is about 18109.6982028967. The cubic root of 327961169 is about 689.6162320180.

The spelling of 327961169 in words is "three hundred twenty-seven million, nine hundred sixty-one thousand, one hundred sixty-nine".