343025321 has 4 divisors (see below), whose sum is σ = 347724372. Its totient is φ = 338326272.

The previous prime is 343025299. The next prime is 343025339. The reversal of 343025321 is 123520343.

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 104755225 + 238270096 = 10235^2 + 15436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343025321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343075321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349416 + ... + 2349561.

It is an arithmetic number, because the mean of its divisors is an integer number (86931093).

Almost surely, 2^343025321 is an apocalyptic number.

It is an amenable number.

343025321 is a deficient number, since it is larger than the sum of its proper divisors (4699051).

343025321 is an equidigital number, since it uses as much as digits as its factorization.

343025321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699050.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 343025321 is about 18520.9427675807. The cubic root of 343025321 is about 700.0172247462.

Adding to 343025321 its reverse (123520343), we get a palindrome (466545664).

The spelling of 343025321 in words is "three hundred forty-three million, twenty-five thousand, three hundred twenty-one".