344321 has 2 divisors, whose sum is σ = 344322. Its totient is φ = 344320.

The previous prime is 344293. The next prime is 344327. The reversal of 344321 is 123443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 7921 = 580^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 344321 - 2⁶ = 344257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 344321.

It is not a weakly prime, because it can be changed into another prime (344327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172160 + 172161.

It is an arithmetic number, because the mean of its divisors is an integer number (172161).

2³⁴⁴³²¹ is an apocalyptic number.

It is an amenable number.

344321 is a deficient number, since it is larger than the sum of its proper divisors (1).

344321 is an equidigital number, since it uses as much as digits as its factorization.

344321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 17.

The square root of 344321 is about 586.7887183646. The cubic root of 344321 is about 70.0897488271.

Adding to 344321 its reverse (123443), we get a palindrome (467764).

The spelling of 344321 in words is "three hundred forty-four thousand, three hundred twenty-one", and thus it is an iban number.