22668893 has 4 divisors (see below), whose sum is σ = 24412668. Its totient is φ = 20925120.

The previous prime is 22668887. The next prime is 22668907. The reversal of 22668893 is 39886622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39886622 = 2 ⋅19943311.

It can be written as a sum of positive squares in 2 ways, for example, as 4919524 + 17749369 = 2218^2 + 4213^2 .

It is a cyclic number.

It is not a de Polignac number, because 22668893 - 2⁶ = 22668829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22668853) 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, 871868 + ... + 871893.

It is an arithmetic number, because the mean of its divisors is an integer number (6103167).

Almost surely, 2^22668893 is an apocalyptic number.

It is an amenable number.

22668893 is a deficient number, since it is larger than the sum of its proper divisors (1743775).

22668893 is a wasteful number, since it uses less digits than its factorization.

22668893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743774.

The product of its digits is 248832, while the sum is 44.

The square root of 22668893 is about 4761.1860917213. The cubic root of 22668893 is about 283.0154236663.

The spelling of 22668893 in words is "twenty-two million, six hundred sixty-eight thousand, eight hundred ninety-three".