22006706 has 8 divisors (see below), whose sum is σ = 33032604. Its totient is φ = 10995840.

The previous prime is 22006657. The next prime is 22006711. The reversal of 22006706 is 60760022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22005481 + 1225 = 4691^2 + 35^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226 + ... + 6746.

Almost surely, 2^22006706 is an apocalyptic number.

22006706 is a deficient number, since it is larger than the sum of its proper divisors (11025898).

22006706 is a wasteful number, since it uses less digits than its factorization.

22006706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 22006706 is about 4691.1305673579. The cubic root of 22006706 is about 280.2324005911.

Adding to 22006706 its reverse (60760022), we get a palindrome (82766728).

The spelling of 22006706 in words is "twenty-two million, six thousand, seven hundred six".