343421223 has 4 divisors (see below), whose sum is σ = 457894968. Its totient is φ = 228947480.

The previous prime is 343421213. The next prime is 343421237. The reversal of 343421223 is 322124343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322124343 = 3 ⋅107374781.

It is a cyclic number.

It is not a de Polignac number, because 343421223 - 2⁶ = 343421159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343421193 and 343421202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343421213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57236868 + ... + 57236873.

It is an arithmetic number, because the mean of its divisors is an integer number (114473742).

Almost surely, 2^343421223 is an apocalyptic number.

343421223 is a deficient number, since it is larger than the sum of its proper divisors (114473745).

343421223 is a wasteful number, since it uses less digits than its factorization.

343421223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114473744.

The product of its digits is 3456, while the sum is 24.

The square root of 343421223 is about 18531.6276403342. The cubic root of 343421223 is about 700.2864290402.

Adding to 343421223 its reverse (322124343), we get a palindrome (665545566).

The spelling of 343421223 in words is "three hundred forty-three million, four hundred twenty-one thousand, two hundred twenty-three".