233921223 has 16 divisors (see below), whose sum is σ = 350126560. Its totient is φ = 154338048.

The previous prime is 233921203. The next prime is 233921227. The reversal of 233921223 is 322129332.

It is not a de Polignac number, because 233921223 - 2¹⁰ = 233920199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233921227) 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 15 ways as a sum of consecutive naturals, for example, 42040 + ... + 47277.

It is an arithmetic number, because the mean of its divisors is an integer number (21882910).

Almost surely, 2^233921223 is an apocalyptic number.

233921223 is a deficient number, since it is larger than the sum of its proper divisors (116205337).

233921223 is an equidigital number, since it uses as much as digits as its factorization.

233921223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89423 (or 89417 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 233921223 is about 15294.4834172325. The cubic root of 233921223 is about 616.1548556185.

The spelling of 233921223 in words is "two hundred thirty-three million, nine hundred twenty-one thousand, two hundred twenty-three".