22104247 has 8 divisors (see below), whose sum is σ = 24187392. Its totient is φ = 20033400.

The previous prime is 22104227. The next prime is 22104253. The reversal of 22104247 is 74240122.

It is a happy number.

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 22104247 - 2¹⁹ = 21579959 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 (22104227) 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, 922 + ... + 6712.

It is an arithmetic number, because the mean of its divisors is an integer number (3023424).

Almost surely, 2^22104247 is an apocalyptic number.

22104247 is a deficient number, since it is larger than the sum of its proper divisors (2083145).

22104247 is a wasteful number, since it uses less digits than its factorization.

22104247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22104247 is about 4701.5153939980. The cubic root of 22104247 is about 280.6458179538.

Adding to 22104247 its reverse (74240122), we get a palindrome (96344369).

The spelling of 22104247 in words is "twenty-two million, one hundred four thousand, two hundred forty-seven".