328429 has 2 divisors, whose sum is σ = 328430. Its totient is φ = 328428.

The previous prime is 328421. The next prime is 328439. The reversal of 328429 is 924823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328329 + 100 = 573^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 328429 - 2³ = 328421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328397 and 328406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164214 + 164215.

It is an arithmetic number, because the mean of its divisors is an integer number (164215).

2³²⁸⁴²⁹ is an apocalyptic number.

It is an amenable number.

328429 is a deficient number, since it is larger than the sum of its proper divisors (1).

328429 is an equidigital number, since it uses as much as digits as its factorization.

328429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 328429 is about 573.0872533917. The cubic root of 328429 is about 68.9943984811.

It can be divided in two parts, 328 and 429, that added together give a palindrome (757).

The spelling of 328429 in words is "three hundred twenty-eight thousand, four hundred twenty-nine".