343169609 has 2 divisors, whose sum is σ = 343169610. Its totient is φ = 343169608.

The previous prime is 343169573. The next prime is 343169611. The reversal of 343169609 is 906961343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338560000 + 4609609 = 18400^2 + 2147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343169609 is a prime.

Together with 343169611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343169639) 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, 171584804 + 171584805.

It is an arithmetic number, because the mean of its divisors is an integer number (171584805).

Almost surely, 2^343169609 is an apocalyptic number.

It is an amenable number.

343169609 is a deficient number, since it is larger than the sum of its proper divisors (1).

343169609 is an equidigital number, since it uses as much as digits as its factorization.

343169609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 343169609 is about 18524.8376241197. The cubic root of 343169609 is about 700.1153612593.

The spelling of 343169609 in words is "three hundred forty-three million, one hundred sixty-nine thousand, six hundred nine".