327338991 has 12 divisors (see below), whose sum is σ = 540369232. Its totient is φ = 187050816.

The previous prime is 327338983. The next prime is 327339017. The reversal of 327338991 is 199833723.

It is not a de Polignac number, because 327338991 - 2³ = 327338983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327337991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2597866 + ... + 2597991.

Almost surely, 2^327338991 is an apocalyptic number.

327338991 is a deficient number, since it is larger than the sum of its proper divisors (213030241).

327338991 is a wasteful number, since it uses less digits than its factorization.

327338991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195870 (or 5195867 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 327338991 is about 18092.5120146430. The cubic root of 327338991 is about 689.1798636285.

It can be divided in two parts, 327338 and 991, that added together give a square (328329 = 573²).

The spelling of 327338991 in words is "three hundred twenty-seven million, three hundred thirty-eight thousand, nine hundred ninety-one".