223929893 has 4 divisors (see below), whose sum is σ = 244287168. Its totient is φ = 203572620.

The previous prime is 223929859. The next prime is 223929913. The reversal of 223929893 is 398929322.

223929893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223929893 - 2¹² = 223925797 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 (223923893) 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, 10178621 + ... + 10178642.

It is an arithmetic number, because the mean of its divisors is an integer number (61071792).

Almost surely, 2^223929893 is an apocalyptic number.

It is an amenable number.

223929893 is a deficient number, since it is larger than the sum of its proper divisors (20357275).

223929893 is a wasteful number, since it uses less digits than its factorization.

223929893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20357274.

The product of its digits is 419904, while the sum is 47.

The square root of 223929893 is about 14964.2872533242. The cubic root of 223929893 is about 607.2544287929.

The spelling of 223929893 in words is "two hundred twenty-three million, nine hundred twenty-nine thousand, eight hundred ninety-three".