343345543 has 2 divisors, whose sum is σ = 343345544. Its totient is φ = 343345542.

The previous prime is 343345517. The next prime is 343345567. The reversal of 343345543 is 345543343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343345543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343345499 and 343345508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343345573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171672771 + 171672772.

It is an arithmetic number, because the mean of its divisors is an integer number (171672772).

Almost surely, 2^343345543 is an apocalyptic number.

343345543 is a deficient number, since it is larger than the sum of its proper divisors (1).

343345543 is an equidigital number, since it uses as much as digits as its factorization.

343345543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 34.

The square root of 343345543 is about 18529.5856132834. The cubic root of 343345543 is about 700.2349843741.

Adding to 343345543 its reverse (345543343), we get a palindrome (688888886).

The spelling of 343345543 in words is "three hundred forty-three million, three hundred forty-five thousand, five hundred forty-three".