22006791 has 24 divisors (see below), whose sum is σ = 33991776. Its totient is φ = 13685760.

The previous prime is 22006771. The next prime is 22006801. The reversal of 22006791 is 19760022.

It is not a de Polignac number, because 22006791 - 2⁶ = 22006727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22006711) 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 23 ways as a sum of consecutive naturals, for example, 7191 + ... + 9783.

It is an arithmetic number, because the mean of its divisors is an integer number (1416324).

Almost surely, 2^22006791 is an apocalyptic number.

22006791 is a deficient number, since it is larger than the sum of its proper divisors (11984985).

22006791 is a wasteful number, since it uses less digits than its factorization.

22006791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 22006791 is about 4691.1396269990. The cubic root of 22006791 is about 280.2327613860.

The spelling of 22006791 in words is "twenty-two million, six thousand, seven hundred ninety-one".