330865 has 4 divisors (see below), whose sum is σ = 397044. Its totient is φ = 264688.

The previous prime is 330859. The next prime is 330877. The reversal of 330865 is 568033.

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 61504 + 269361 = 248^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 330865 - 2³ = 330857 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, 33082 + ... + 33091.

It is an arithmetic number, because the mean of its divisors is an integer number (99261).

2³³⁰⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

330865 is a deficient number, since it is larger than the sum of its proper divisors (66179).

330865 is an equidigital number, since it uses as much as digits as its factorization.

330865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66178.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 330865 is about 575.2086577930. The cubic root of 330865 is about 69.1645585719.

Adding to 330865 its reverse (568033), we get a palindrome (898898).

The spelling of 330865 in words is "three hundred thirty thousand, eight hundred sixty-five".