343444313 has 2 divisors, whose sum is σ = 343444314. Its totient is φ = 343444312.

The previous prime is 343444301. The next prime is 343444327. The reversal of 343444313 is 313444343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336062224 + 7382089 = 18332^2 + 2717^2 .

It is a cyclic number.

It is not a de Polignac number, because 343444313 - 2¹² = 343440217 is a prime.

It is a super-2 number, since 2×343444313² = 235907992264083938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343444393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171722156 + 171722157.

It is an arithmetic number, because the mean of its divisors is an integer number (171722157).

Almost surely, 2^343444313 is an apocalyptic number.

It is an amenable number.

343444313 is a deficient number, since it is larger than the sum of its proper divisors (1).

343444313 is an equidigital number, since it uses as much as digits as its factorization.

343444313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 29.

The square root of 343444313 is about 18532.2506188536. The cubic root of 343444313 is about 700.3021233249.

Adding to 343444313 its reverse (313444343), we get a palindrome (656888656).

The spelling of 343444313 in words is "three hundred forty-three million, four hundred forty-four thousand, three hundred thirteen".