343403873 has 2 divisors, whose sum is σ = 343403874. Its totient is φ = 343403872.

The previous prime is 343403867. The next prime is 343403887. The reversal of 343403873 is 378304343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298874944 + 44528929 = 17288^2 + 6673^2 .

It is an emirp because it is prime and its reverse (378304343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343403873 - 2⁸ = 343403617 is a prime.

It is not a weakly prime, because it can be changed into another prime (343403843) 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, 171701936 + 171701937.

It is an arithmetic number, because the mean of its divisors is an integer number (171701937).

Almost surely, 2^343403873 is an apocalyptic number.

It is an amenable number.

343403873 is a deficient number, since it is larger than the sum of its proper divisors (1).

343403873 is an equidigital number, since it uses as much as digits as its factorization.

343403873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 343403873 is about 18531.1595157993. The cubic root of 343403873 is about 700.2746357736.

The spelling of 343403873 in words is "three hundred forty-three million, four hundred three thousand, eight hundred seventy-three".