223458889 has 2 divisors, whose sum is σ = 223458890. Its totient is φ = 223458888.

The previous prime is 223458877. The next prime is 223458929. The reversal of 223458889 is 988854322.

It is a happy number.

223458889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219276864 + 4182025 = 14808^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 223458889 - 2¹¹ = 223456841 is a prime.

It is a super-2 number, since 2×223458889² = 99867750146228642, which contains 22 as substring.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (223458839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111729444 + 111729445.

It is an arithmetic number, because the mean of its divisors is an integer number (111729445).

Almost surely, 2^223458889 is an apocalyptic number.

It is an amenable number.

223458889 is a deficient number, since it is larger than the sum of its proper divisors (1).

223458889 is an equidigital number, since it uses as much as digits as its factorization.

223458889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 49.

The square root of 223458889 is about 14948.5413669696. The cubic root of 223458889 is about 606.8283727787.

The spelling of 223458889 in words is "two hundred twenty-three million, four hundred fifty-eight thousand, eight hundred eighty-nine".