327865565 has 4 divisors (see below), whose sum is σ = 393438684. Its totient is φ = 262292448.

The previous prime is 327865543. The next prime is 327865591. The reversal of 327865565 is 565568723.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118831801 + 209033764 = 10901^2 + 14458^2 .

It is a cyclic number.

It is not a de Polignac number, because 327865565 - 2¹⁶ = 327800029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32786552 + ... + 32786561.

It is an arithmetic number, because the mean of its divisors is an integer number (98359671).

Almost surely, 2^327865565 is an apocalyptic number.

It is an amenable number.

327865565 is a deficient number, since it is larger than the sum of its proper divisors (65573119).

327865565 is an equidigital number, since it uses as much as digits as its factorization.

327865565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65573118.

The product of its digits is 1512000, while the sum is 47.

The square root of 327865565 is about 18107.0584303470. The cubic root of 327865565 is about 689.5492154686.

The spelling of 327865565 in words is "three hundred twenty-seven million, eight hundred sixty-five thousand, five hundred sixty-five".