343753213 has 2 divisors, whose sum is σ = 343753214. Its totient is φ = 343753212.

The previous prime is 343753171. The next prime is 343753237. The reversal of 343753213 is 312357343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252110884 + 91642329 = 15878^2 + 9573^2 .

It is a cyclic number.

It is not a de Polignac number, because 343753213 - 2⁹ = 343752701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343753013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171876606 + 171876607.

It is an arithmetic number, because the mean of its divisors is an integer number (171876607).

Almost surely, 2^343753213 is an apocalyptic number.

It is an amenable number.

343753213 is a deficient number, since it is larger than the sum of its proper divisors (1).

343753213 is an equidigital number, since it uses as much as digits as its factorization.

343753213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 31.

The square root of 343753213 is about 18540.5828657030. The cubic root of 343753213 is about 700.5120151910.

The spelling of 343753213 in words is "three hundred forty-three million, seven hundred fifty-three thousand, two hundred thirteen".