330689 has 2 divisors, whose sum is σ = 330690. Its totient is φ = 330688.

The previous prime is 330683. The next prime is 330697. The reversal of 330689 is 986033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330625 + 64 = 575^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 330689 - 2⁸ = 330433 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 330689.

It is not a weakly prime, because it can be changed into another prime (330683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165344 + 165345.

It is an arithmetic number, because the mean of its divisors is an integer number (165345).

2³³⁰⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

330689 is a deficient number, since it is larger than the sum of its proper divisors (1).

330689 is an equidigital number, since it uses as much as digits as its factorization.

330689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 330689 is about 575.0556494810. The cubic root of 330689 is about 69.1522926212.

The spelling of 330689 in words is "three hundred thirty thousand, six hundred eighty-nine".