223423423 has 4 divisors (see below), whose sum is σ = 223570888. Its totient is φ = 223275960.

The previous prime is 223423393. The next prime is 223423441. The reversal of 223423423 is 324324322.

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

It is a cyclic number.

It is not a de Polignac number, because 223423423 - 2²¹ = 221326271 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 (223423463) 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, 71436 + ... + 74497.

It is an arithmetic number, because the mean of its divisors is an integer number (55892722).

Almost surely, 2^223423423 is an apocalyptic number.

223423423 is a deficient number, since it is larger than the sum of its proper divisors (147465).

223423423 is a wasteful number, since it uses less digits than its factorization.

223423423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147464.

The product of its digits is 6912, while the sum is 25.

The square root of 223423423 is about 14947.3550503091. The cubic root of 223423423 is about 606.7962670763.

Adding to 223423423 its reverse (324324322), we get a palindrome (547747745).

The spelling of 223423423 in words is "two hundred twenty-three million, four hundred twenty-three thousand, four hundred twenty-three".