22086609 has 16 divisors (see below), whose sum is σ = 30199680. Its totient is φ = 14353920.

The previous prime is 22086593. The next prime is 22086611. The reversal of 22086609 is 90668022.

It is not a de Polignac number, because 22086609 - 2⁴ = 22086593 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22086609.

It is not an unprimeable number, because it can be changed into a prime (22086629) 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, 20127 + ... + 21195.

It is an arithmetic number, because the mean of its divisors is an integer number (1887480).

Almost surely, 2^22086609 is an apocalyptic number.

It is an amenable number.

22086609 is a deficient number, since it is larger than the sum of its proper divisors (8113071).

22086609 is a wasteful number, since it uses less digits than its factorization.

22086609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 22086609 is about 4699.6392414738. The cubic root of 22086609 is about 280.5711513352.

The spelling of 22086609 in words is "twenty-two million, eighty-six thousand, six hundred nine".