22089785 has 4 divisors (see below), whose sum is σ = 26507748. Its totient is φ = 17671824.

The previous prime is 22089773. The next prime is 22089787. The reversal of 22089785 is 58798022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6817321 + 15272464 = 2611^2 + 3908^2 .

It is a cyclic number.

It is not a de Polignac number, because 22089785 - 2⁶ = 22089721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22089787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208974 + ... + 2208983.

It is an arithmetic number, because the mean of its divisors is an integer number (6626937).

Almost surely, 2^22089785 is an apocalyptic number.

It is an amenable number.

22089785 is a deficient number, since it is larger than the sum of its proper divisors (4417963).

22089785 is an equidigital number, since it uses as much as digits as its factorization.

22089785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417962.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 22089785 is about 4699.9771276039. The cubic root of 22089785 is about 280.5845991710.

The spelling of 22089785 in words is "twenty-two million, eighty-nine thousand, seven hundred eighty-five".