330809 has 8 divisors (see below), whose sum is σ = 363840. Its totient is φ = 299376.

The previous prime is 330793. The next prime is 330821. The reversal of 330809 is 908033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 330809 - 2⁴ = 330793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 330809.

It is not an unprimeable number, because it can be changed into a prime (330839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (45480).

2³³⁰⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

330809 is a deficient number, since it is larger than the sum of its proper divisors (33031).

330809 is a wasteful number, since it uses less digits than its factorization.

330809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 330809 is about 575.1599777453. The cubic root of 330809 is about 69.1606562413.

The spelling of 330809 in words is "three hundred thirty thousand, eight hundred nine".