22199647 has 2 divisors, whose sum is σ = 22199648. Its totient is φ = 22199646.

The previous prime is 22199629. The next prime is 22199663. The reversal of 22199647 is 74699122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22199647 - 2¹⁹ = 21675359 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 (22199677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11099823 + 11099824.

It is an arithmetic number, because the mean of its divisors is an integer number (11099824).

Almost surely, 2^22199647 is an apocalyptic number.

22199647 is a deficient number, since it is larger than the sum of its proper divisors (1).

22199647 is an equidigital number, since it uses as much as digits as its factorization.

22199647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 22199647 is about 4711.6501355682. The cubic root of 22199647 is about 281.0489861112.

The spelling of 22199647 in words is "twenty-two million, one hundred ninety-nine thousand, six hundred forty-seven".