22059947 has 12 divisors (see below), whose sum is σ = 27636336. Its totient is φ = 17453520.

The previous prime is 22059937. The next prime is 22059949. The reversal of 22059947 is 74995022.

It is not a de Polignac number, because 22059947 - 2¹⁰ = 22058923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22059947.

It is not an unprimeable number, because it can be changed into a prime (22059949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16679 + ... + 17952.

It is an arithmetic number, because the mean of its divisors is an integer number (2303028).

Almost surely, 2^22059947 is an apocalyptic number.

22059947 is a deficient number, since it is larger than the sum of its proper divisors (5576389).

22059947 is a wasteful number, since it uses less digits than its factorization.

22059947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34658 (or 34651 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 22059947 is about 4696.8017841932. The cubic root of 22059947 is about 280.4582080863.

The spelling of 22059947 in words is "twenty-two million, fifty-nine thousand, nine hundred forty-seven".