327688109 has 8 divisors (see below), whose sum is σ = 375154368. Its totient is φ = 280385280.

The previous prime is 327688103. The next prime is 327688111. The reversal of 327688109 is 901886723.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 327688109 - 2¹⁶ = 327622573 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 327688109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327688103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36527 + ... + 44604.

It is an arithmetic number, because the mean of its divisors is an integer number (46894296).

Almost surely, 2^327688109 is an apocalyptic number.

It is an amenable number.

327688109 is a deficient number, since it is larger than the sum of its proper divisors (47466259).

327688109 is an equidigital number, since it uses as much as digits as its factorization.

327688109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81715.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 327688109 is about 18102.1575785871. The cubic root of 327688109 is about 689.4247877135.

The spelling of 327688109 in words is "three hundred twenty-seven million, six hundred eighty-eight thousand, one hundred nine".