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327 = 3109

327 has 4 divisors (see below), whose sum is σ = 440. Its totient is φ = 216.

The previous prime is 317. The next prime is 331. The reversal of 327 is 723.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723 = 3241.

It is not a de Polignac number, because 327 - 24 = 311 is a prime.

It is a D-number.

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

It is a Duffinian number.

327 is a modest number, since divided by 27 gives 3 as remainder.

327 is a lucky number.

It is a plaindrome in base 11, base 12, base 15 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52 + ... + 57.

It is an arithmetic number, because the mean of its divisors is an integer number (110).

327 is a deficient number, since it is larger than the sum of its proper divisors (113).

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

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

The sum of its prime factors is 112.

The product of its digits is 42, while the sum is 12.

The square root of 327 is about 18.0831413200. The cubic root of 327 is about 6.8894187745.

It can be divided in two parts, 3 and 27, that multiplied together give a 4-th power (81 = 34).

The spelling of 327 in words is "three hundred twenty-seven", and thus it is an aban number, an iban number, and an oban number.

Divisors: 1 3 109 327