343445717 has 2 divisors, whose sum is σ = 343445718. Its totient is φ = 343445716.

The previous prime is 343445701. The next prime is 343445723. The reversal of 343445717 is 717544343.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281367076 + 62078641 = 16774^2 + 7879^2 .

It is a cyclic number.

It is not a de Polignac number, because 343445717 - 2⁴ = 343445701 is a prime.

It is a super-3 number, since 3×343445717³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343445797) 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 as a sum of consecutive naturals, namely, 171722858 + 171722859.

It is an arithmetic number, because the mean of its divisors is an integer number (171722859).

Almost surely, 2^343445717 is an apocalyptic number.

It is an amenable number.

343445717 is a deficient number, since it is larger than the sum of its proper divisors (1).

343445717 is an equidigital number, since it uses as much as digits as its factorization.

343445717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 38.

The square root of 343445717 is about 18532.2884987257. The cubic root of 343445717 is about 700.3030776017.

The spelling of 343445717 in words is "three hundred forty-three million, four hundred forty-five thousand, seven hundred seventeen".