343643423 has 4 divisors (see below), whose sum is σ = 363857760. Its totient is φ = 323429088.

The previous prime is 343643381. The next prime is 343643441. The reversal of 343643423 is 324346343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324346343 = 193 ⋅1680551.

It is a cyclic number.

It is not a de Polignac number, because 343643423 - 2¹⁰ = 343642399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343643423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343643473) 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, 10107143 + ... + 10107176.

It is an arithmetic number, because the mean of its divisors is an integer number (90964440).

Almost surely, 2^343643423 is an apocalyptic number.

343643423 is a deficient number, since it is larger than the sum of its proper divisors (20214337).

343643423 is a wasteful number, since it uses less digits than its factorization.

343643423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214336.

The product of its digits is 62208, while the sum is 32.

The square root of 343643423 is about 18537.6218269766. The cubic root of 343643423 is about 700.4374293150.

Adding to 343643423 its reverse (324346343), we get a palindrome (667989766).

The spelling of 343643423 in words is "three hundred forty-three million, six hundred forty-three thousand, four hundred twenty-three".