327791 has 4 divisors (see below), whose sum is σ = 329784. Its totient is φ = 325800.

The previous prime is 327779. The next prime is 327797. The reversal of 327791 is 197723.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 197723 = 149 ⋅1327.

It is not a de Polignac number, because 327791 - 2¹⁴ = 311407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 327791.

It is not an unprimeable number, because it can be changed into a prime (327797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725 + ... + 1086.

It is an arithmetic number, because the mean of its divisors is an integer number (82446).

2³²⁷⁷⁹¹ is an apocalyptic number.

327791 is a deficient number, since it is larger than the sum of its proper divisors (1993).

327791 is a wasteful number, since it uses less digits than its factorization.

327791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992.

The product of its digits is 2646, while the sum is 29.

The square root of 327791 is about 572.5303485406. The cubic root of 327791 is about 68.9496937807.

The spelling of 327791 in words is "three hundred twenty-seven thousand, seven hundred ninety-one".