330389 has 2 divisors, whose sum is σ = 330390. Its totient is φ = 330388.

The previous prime is 330383. The next prime is 330409. The reversal of 330389 is 983033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 27889 = 550^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 330389 - 2⁸ = 330133 is a prime.

It is a Chen prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165194 + 165195.

It is an arithmetic number, because the mean of its divisors is an integer number (165195).

2³³⁰³⁸⁹ is an apocalyptic number.

It is an amenable number.

330389 is a deficient number, since it is larger than the sum of its proper divisors (1).

330389 is an equidigital number, since it uses as much as digits as its factorization.

330389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 330389 is about 574.7947459746. The cubic root of 330389 is about 69.1313747150.

The spelling of 330389 in words is "three hundred thirty thousand, three hundred eighty-nine".