327689231 has 2 divisors, whose sum is σ = 327689232. Its totient is φ = 327689230.

The previous prime is 327689221. The next prime is 327689249. The reversal of 327689231 is 132986723.

It is a weak prime.

It is an emirp because it is prime and its reverse (132986723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 327689231 - 2¹⁴ = 327672847 is a prime.

It is a super-2 number, since 2×327689231² = 214760464226742722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327689221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163844615 + 163844616.

It is an arithmetic number, because the mean of its divisors is an integer number (163844616).

Almost surely, 2^327689231 is an apocalyptic number.

327689231 is a deficient number, since it is larger than the sum of its proper divisors (1).

327689231 is an equidigital number, since it uses as much as digits as its factorization.

327689231 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 327689231 is about 18102.1885693416. The cubic root of 327689231 is about 689.4255745732.

The spelling of 327689231 in words is "three hundred twenty-seven million, six hundred eighty-nine thousand, two hundred thirty-one".