222385879 has 2 divisors, whose sum is σ = 222385880. Its totient is φ = 222385878.

The previous prime is 222385871. The next prime is 222385897. The reversal of 222385879 is 978583222.

Together with next prime (222385897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222385879 - 2³ = 222385871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222385871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111192939 + 111192940.

It is an arithmetic number, because the mean of its divisors is an integer number (111192940).

Almost surely, 2^222385879 is an apocalyptic number.

222385879 is a deficient number, since it is larger than the sum of its proper divisors (1).

222385879 is an equidigital number, since it uses as much as digits as its factorization.

222385879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 222385879 is about 14912.6080549312. The cubic root of 222385879 is about 605.8555198411.

The spelling of 222385879 in words is "two hundred twenty-two million, three hundred eighty-five thousand, eight hundred seventy-nine".