345329 has 2 divisors, whose sum is σ = 345330. Its totient is φ = 345328.

The previous prime is 345311. The next prime is 345379. The reversal of 345329 is 923543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277729 + 67600 = 527^2 + 260^2 .

It is an emirp because it is prime and its reverse (923543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345329 - 2¹² = 341233 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 345298 and 345307.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345329.

It is not a weakly prime, because it can be changed into another prime (345379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172664 + 172665.

It is an arithmetic number, because the mean of its divisors is an integer number (172665).

2³⁴⁵³²⁹ is an apocalyptic number.

It is an amenable number.

345329 is a deficient number, since it is larger than the sum of its proper divisors (1).

345329 is an equidigital number, since it uses as much as digits as its factorization.

345329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 345329 is about 587.6470028852. The cubic root of 345329 is about 70.1580781241.

The spelling of 345329 in words is "three hundred forty-five thousand, three hundred twenty-nine".