343643343 has 4 divisors (see below), whose sum is σ = 458191128. Its totient is φ = 229095560.

The previous prime is 343643341. The next prime is 343643353. The reversal of 343643343 is 343346343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343346343 = 3 ⋅114448781.

It is a cyclic number.

It is not a de Polignac number, because 343643343 - 2¹ = 343643341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343643341) 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 3 ways as a sum of consecutive naturals, for example, 57273888 + ... + 57273893.

It is an arithmetic number, because the mean of its divisors is an integer number (114547782).

Almost surely, 2^343643343 is an apocalyptic number.

343643343 is a deficient number, since it is larger than the sum of its proper divisors (114547785).

343643343 is a wasteful number, since it uses less digits than its factorization.

343643343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114547784.

The product of its digits is 93312, while the sum is 33.

The square root of 343643343 is about 18537.6196692024. The cubic root of 343643343 is about 700.4373749612.

Adding to 343643343 its reverse (343346343), we get a palindrome (686989686).

The spelling of 343643343 in words is "three hundred forty-three million, six hundred forty-three thousand, three hundred forty-three".