22222347 has 32 divisors (see below), whose sum is σ = 35696640. Its totient is φ = 12022560.

The previous prime is 22222331. The next prime is 22222351. The reversal of 22222347 is 74322222.

It is a happy number.

It is not a de Polignac number, because 22222347 - 2⁴ = 22222331 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22222327) 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 31 ways as a sum of consecutive naturals, for example, 66972 + ... + 67302.

It is an arithmetic number, because the mean of its divisors is an integer number (1115520).

Almost surely, 2^22222347 is an apocalyptic number.

22222347 is a deficient number, since it is larger than the sum of its proper divisors (13474293).

22222347 is a wasteful number, since it uses less digits than its factorization.

22222347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503.

The product of its digits is 2688, while the sum is 24.

The square root of 22222347 is about 4714.0584425737. The cubic root of 22222347 is about 281.1447479745.

Adding to 22222347 its reverse (74322222), we get a palindrome (96544569).

The spelling of 22222347 in words is "twenty-two million, two hundred twenty-two thousand, three hundred forty-seven".