343743437 has 2 divisors, whose sum is σ = 343743438. Its totient is φ = 343743436.

The previous prime is 343743397. The next prime is 343743443. The reversal of 343743437 is 734347343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206525641 + 137217796 = 14371^2 + 11714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343743437 is a prime.

It is a Chen prime.

It is equal to p_18485345 and since 343743437 and 18485345 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343743437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343743137) 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, 171871718 + 171871719.

It is an arithmetic number, because the mean of its divisors is an integer number (171871719).

Almost surely, 2^343743437 is an apocalyptic number.

It is an amenable number.

343743437 is a deficient number, since it is larger than the sum of its proper divisors (1).

343743437 is an equidigital number, since it uses as much as digits as its factorization.

343743437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 38.

The square root of 343743437 is about 18540.3192259465. The cubic root of 343743437 is about 700.5053745060.

The spelling of 343743437 in words is "three hundred forty-three million, seven hundred forty-three thousand, four hundred thirty-seven".