343743399 has 8 divisors (see below), whose sum is σ = 509249520. Its totient is φ = 229162248.

The previous prime is 343743397. The next prime is 343743437. The reversal of 343743399 is 993347343.

It is not a de Polignac number, because 343743399 - 2¹ = 343743397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343743391) 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 in 7 ways as a sum of consecutive naturals, for example, 6365592 + ... + 6365645.

It is an arithmetic number, because the mean of its divisors is an integer number (63656190).

Almost surely, 2^343743399 is an apocalyptic number.

343743399 is a deficient number, since it is larger than the sum of its proper divisors (165506121).

343743399 is a wasteful number, since it uses less digits than its factorization.

343743399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731246 (or 12731240 counting only the distinct ones).

The product of its digits is 734832, while the sum is 45.

The square root of 343743399 is about 18540.3182011529. The cubic root of 343743399 is about 700.5053486929.

It can be divided in two parts, 34374 and 3399, that added together give a palindrome (37773).

The spelling of 343743399 in words is "three hundred forty-three million, seven hundred forty-three thousand, three hundred ninety-nine".