223221489 has 4 divisors (see below), whose sum is σ = 297628656. Its totient is φ = 148814324.

The previous prime is 223221473. The next prime is 223221503. The reversal of 223221489 is 984122322.

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 223221489 - 2⁴ = 223221473 is a prime.

It is a super-3 number, since 3×223221489³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223221289) 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, 37203579 + ... + 37203584.

It is an arithmetic number, because the mean of its divisors is an integer number (74407164).

Almost surely, 2^223221489 is an apocalyptic number.

It is an amenable number.

223221489 is a deficient number, since it is larger than the sum of its proper divisors (74407167).

223221489 is an equidigital number, since it uses as much as digits as its factorization.

223221489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74407166.

The product of its digits is 13824, while the sum is 33.

The square root of 223221489 is about 14940.5986827838. The cubic root of 223221489 is about 606.6134009440.

The spelling of 223221489 in words is "two hundred twenty-three million, two hundred twenty-one thousand, four hundred eighty-nine".