343485517 has 2 divisors, whose sum is σ = 343485518. Its totient is φ = 343485516.

The previous prime is 343485511. The next prime is 343485521. The reversal of 343485517 is 715584343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332916516 + 10569001 = 18246^2 + 3251^2 .

It is an emirp because it is prime and its reverse (715584343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343485517 - 2³ = 343485509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343485517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343485511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171742758 + 171742759.

It is an arithmetic number, because the mean of its divisors is an integer number (171742759).

Almost surely, 2^343485517 is an apocalyptic number.

It is an amenable number.

343485517 is a deficient number, since it is larger than the sum of its proper divisors (1).

343485517 is an equidigital number, since it uses as much as digits as its factorization.

343485517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The square root of 343485517 is about 18533.3622691621. The cubic root of 343485517 is about 700.3301279569.

The spelling of 343485517 in words is "three hundred forty-three million, four hundred eighty-five thousand, five hundred seventeen".