329389 has 4 divisors (see below), whose sum is σ = 333180. Its totient is φ = 325600.

The previous prime is 329387. The next prime is 329393. The reversal of 329389 is 983923.

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 96100 + 233289 = 310^2 + 483^2 .

It is a cyclic number.

It is not a de Polignac number, because 329389 - 2¹ = 329387 is a prime.

It is a super-2 number, since 2×329389² = 216994226642, which contains 22 as substring.

It is a Duffinian number.

329389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329387) 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, 1762 + ... + 1939.

It is an arithmetic number, because the mean of its divisors is an integer number (83295).

2³²⁹³⁸⁹ is an apocalyptic number.

It is an amenable number.

329389 is a deficient number, since it is larger than the sum of its proper divisors (3791).

329389 is an equidigital number, since it uses as much as digits as its factorization.

329389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790.

The product of its digits is 11664, while the sum is 34.

The square root of 329389 is about 573.9242110244. The cubic root of 329389 is about 69.0615567734.

It can be divided in two parts, 3 and 29389, that added together give a palindrome (29392).

The spelling of 329389 in words is "three hundred twenty-nine thousand, three hundred eighty-nine".