330663 has 4 divisors (see below), whose sum is σ = 440888. Its totient is φ = 220440.

The previous prime is 330661. The next prime is 330679. The reversal of 330663 is 366033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366033 = 3 ⋅122011.

It is not a de Polignac number, because 330663 - 2¹ = 330661 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330661) 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, 55108 + ... + 55113.

It is an arithmetic number, because the mean of its divisors is an integer number (110222).

2³³⁰⁶⁶³ is an apocalyptic number.

330663 is a deficient number, since it is larger than the sum of its proper divisors (110225).

330663 is a wasteful number, since it uses less digits than its factorization.

330663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110224.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 330663 is about 575.0330425289. The cubic root of 330663 is about 69.1504802368.

Adding to 330663 its reverse (366033), we get a palindrome (696696).

The spelling of 330663 in words is "three hundred thirty thousand, six hundred sixty-three".