343203407 has 2 divisors, whose sum is σ = 343203408. Its totient is φ = 343203406.

The previous prime is 343203389. The next prime is 343203431. The reversal of 343203407 is 704302343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343203407 - 2¹⁰ = 343202383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343203457) 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, 171601703 + 171601704.

It is an arithmetic number, because the mean of its divisors is an integer number (171601704).

Almost surely, 2^343203407 is an apocalyptic number.

343203407 is a deficient number, since it is larger than the sum of its proper divisors (1).

343203407 is an equidigital number, since it uses as much as digits as its factorization.

343203407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 343203407 is about 18525.7498363764. The cubic root of 343203407 is about 700.1383447652.

The spelling of 343203407 in words is "three hundred forty-three million, two hundred three thousand, four hundred seven".