22085817 has 16 divisors (see below), whose sum is σ = 32390400. Its totient is φ = 13300992.

The previous prime is 22085807. The next prime is 22085821. The reversal of 22085817 is 71858022.

It is not a de Polignac number, because 22085817 - 2⁶ = 22085753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22085807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4192 + ... + 7857.

It is an arithmetic number, because the mean of its divisors is an integer number (2024400).

Almost surely, 2^22085817 is an apocalyptic number.

It is an amenable number.

22085817 is a deficient number, since it is larger than the sum of its proper divisors (10304583).

22085817 is a wasteful number, since it uses less digits than its factorization.

22085817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12112.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 22085817 is about 4699.5549789315. The cubic root of 22085817 is about 280.5677976439.

The spelling of 22085817 in words is "twenty-two million, eighty-five thousand, eight hundred seventeen".