22271447 has 8 divisors (see below), whose sum is σ = 24953232. Its totient is φ = 19699200.

The previous prime is 22271407. The next prime is 22271489. The reversal of 22271447 is 74417222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22271447 - 2⁸ = 22271191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22271407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26954 + ... + 27767.

It is an arithmetic number, because the mean of its divisors is an integer number (3119154).

Almost surely, 2^22271447 is an apocalyptic number.

22271447 is a deficient number, since it is larger than the sum of its proper divisors (2681785).

22271447 is a wasteful number, since it uses less digits than its factorization.

22271447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54769.

The product of its digits is 6272, while the sum is 29.

The square root of 22271447 is about 4719.2633959125. The cubic root of 22271447 is about 281.3516576054.

Adding to 22271447 its reverse (74417222), we get a palindrome (96688669).

The spelling of 22271447 in words is "twenty-two million, two hundred seventy-one thousand, four hundred forty-seven".