327671281 has 12 divisors (see below), whose sum is σ = 388363572. Its totient is φ = 275559648.

The previous prime is 327671269. The next prime is 327671287. The reversal of 327671281 is 182176723.

It can be written as a sum of positive squares in 2 ways, for example, as 148352400 + 179318881 = 12180^2 + 13391^2 .

It is not a de Polignac number, because 327671281 - 2⁷ = 327671153 is a prime.

It is a super-2 number, since 2×327671281² = 214736936784361922, which contains 22 as substring.

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 327671281.

It is not an unprimeable number, because it can be changed into a prime (327671287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60490 + ... + 65683.

It is an arithmetic number, because the mean of its divisors is an integer number (32363631).

Almost surely, 2^327671281 is an apocalyptic number.

It is an amenable number.

327671281 is a deficient number, since it is larger than the sum of its proper divisors (60692291).

327671281 is a wasteful number, since it uses less digits than its factorization.

327671281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126240 (or 126233 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 327671281 is about 18101.6927661476. The cubic root of 327671281 is about 689.4129860046.

The spelling of 327671281 in words is "three hundred twenty-seven million, six hundred seventy-one thousand, two hundred eighty-one".