327680109 has 6 divisors (see below), whose sum is σ = 473315726. Its totient is φ = 218453400.

The previous prime is 327680069. The next prime is 327680113. The reversal of 327680109 is 901086723.

It can be written as a sum of positive squares in only one way, i.e., 324108009 + 3572100 = 18003^2 + 1890^2 .

It is not a de Polignac number, because 327680109 - 2¹¹ = 327678061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327680179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18204442 + ... + 18204459.

Almost surely, 2^327680109 is an apocalyptic number.

It is an amenable number.

327680109 is a deficient number, since it is larger than the sum of its proper divisors (145635617).

327680109 is a wasteful number, since it uses less digits than its factorization.

327680109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36408907 (or 36408904 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 327680109 is about 18101.9366091035. The cubic root of 327680109 is about 689.4191772534.

The spelling of 327680109 in words is "three hundred twenty-seven million, six hundred eighty thousand, one hundred nine".