243676223 has 4 divisors (see below), whose sum is σ = 278487120. Its totient is φ = 208865328.

The previous prime is 243676207. The next prime is 243676229. The reversal of 243676223 is 322676342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 243676223 - 2⁴ = 243676207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243676229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17405438 + ... + 17405451.

It is an arithmetic number, because the mean of its divisors is an integer number (69621780).

Almost surely, 2^243676223 is an apocalyptic number.

243676223 is a deficient number, since it is larger than the sum of its proper divisors (34810897).

243676223 is an equidigital number, since it uses as much as digits as its factorization.

243676223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34810896.

The product of its digits is 72576, while the sum is 35.

The square root of 243676223 is about 15610.1320622216. The cubic root of 243676223 is about 624.6034587546.

The spelling of 243676223 in words is "two hundred forty-three million, six hundred seventy-six thousand, two hundred twenty-three".