223894321 has 8 divisors (see below), whose sum is σ = 260216640. Its totient is φ = 188656368.

The previous prime is 223894261. The next prime is 223894343. The reversal of 223894321 is 123498322.

It is a happy number.

223894321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223894321 - 2²⁵ = 190339889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223894621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270646 + ... + 271471.

It is an arithmetic number, because the mean of its divisors is an integer number (32527080).

Almost surely, 2^223894321 is an apocalyptic number.

It is an amenable number.

223894321 is a deficient number, since it is larger than the sum of its proper divisors (36322319).

223894321 is an equidigital number, since it uses as much as digits as its factorization.

223894321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542183.

The product of its digits is 20736, while the sum is 34.

The square root of 223894321 is about 14963.0986429950. The cubic root of 223894321 is about 607.2222723023. Note that the first 4 decimals are identical.

The spelling of 223894321 in words is "two hundred twenty-three million, eight hundred ninety-four thousand, three hundred twenty-one".