222706889 has 2 divisors, whose sum is σ = 222706890. Its totient is φ = 222706888.

The previous prime is 222706877. The next prime is 222706927. The reversal of 222706889 is 988607222.

222706889 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., 222606400 + 100489 = 14920^2 + 317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222706889 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (222706489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111353444 + 111353445.

It is an arithmetic number, because the mean of its divisors is an integer number (111353445).

Almost surely, 2^222706889 is an apocalyptic number.

It is an amenable number.

222706889 is a deficient number, since it is larger than the sum of its proper divisors (1).

222706889 is an equidigital number, since it uses as much as digits as its factorization.

222706889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 222706889 is about 14923.3672138697. The cubic root of 222706889 is about 606.1468935222.

The spelling of 222706889 in words is "two hundred twenty-two million, seven hundred six thousand, eight hundred eighty-nine".