22006807 has 8 divisors (see below), whose sum is σ = 23912960. Its totient is φ = 20175480.

The previous prime is 22006801. The next prime is 22006843. The reversal of 22006807 is 70860022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22006807 - 2¹⁹ = 21482519 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 (22006801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18093 + ... + 19270.

It is an arithmetic number, because the mean of its divisors is an integer number (2989120).

Almost surely, 2^22006807 is an apocalyptic number.

22006807 is a deficient number, since it is larger than the sum of its proper divisors (1906153).

22006807 is a wasteful number, since it uses less digits than its factorization.

22006807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37413.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 22006807 is about 4691.1413323412. The cubic root of 22006807 is about 280.2328293002.

Adding to 22006807 its reverse (70860022), we get a palindrome (92866829).

The spelling of 22006807 in words is "twenty-two million, six thousand, eight hundred seven".