222347889 has 8 divisors (see below), whose sum is σ = 329404320. Its totient is φ = 148231908.

The previous prime is 222347887. The next prime is 222347933. The reversal of 222347889 is 988743222.

222347889 is a `hidden beast` number, since 222 + 347 + 8 + 89 = 666.

It is not a de Polignac number, because 222347889 - 2¹ = 222347887 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222347887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4117527 + ... + 4117580.

It is an arithmetic number, because the mean of its divisors is an integer number (41175540).

Almost surely, 2^222347889 is an apocalyptic number.

It is an amenable number.

222347889 is a deficient number, since it is larger than the sum of its proper divisors (107056431).

222347889 is an equidigital number, since it uses as much as digits as its factorization.

222347889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8235116 (or 8235110 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 222347889 is about 14911.3342461364. The cubic root of 222347889 is about 605.8210186068.

The spelling of 222347889 in words is "two hundred twenty-two million, three hundred forty-seven thousand, eight hundred eighty-nine".