343020017 has 2 divisors, whose sum is σ = 343020018. Its totient is φ = 343020016.

The previous prime is 343019983. The next prime is 343020023. The reversal of 343020017 is 710020343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187169761 + 155850256 = 13681^2 + 12484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343020017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343020047) 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, 171510008 + 171510009.

It is an arithmetic number, because the mean of its divisors is an integer number (171510009).

Almost surely, 2^343020017 is an apocalyptic number.

It is an amenable number.

343020017 is a deficient number, since it is larger than the sum of its proper divisors (1).

343020017 is an equidigital number, since it uses as much as digits as its factorization.

343020017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 343020017 is about 18520.7995777720. The cubic root of 343020017 is about 700.0136167419.

The spelling of 343020017 in words is "three hundred forty-three million, twenty thousand, seventeen".