22706109 has 8 divisors (see below), whose sum is σ = 33638720. Its totient is φ = 15137388.

The previous prime is 22706093. The next prime is 22706111. The reversal of 22706109 is 90160722.

It is not a de Polignac number, because 22706109 - 2⁴ = 22706093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 840967 = 22706109 / (2 + 2 + 7 + 0 + 6 + 1 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22706119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420457 + ... + 420510.

It is an arithmetic number, because the mean of its divisors is an integer number (4204840).

Almost surely, 2^22706109 is an apocalyptic number.

It is an amenable number.

22706109 is a deficient number, since it is larger than the sum of its proper divisors (10932611).

22706109 is an equidigital number, since it uses as much as digits as its factorization.

22706109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840976 (or 840970 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 22706109 is about 4765.0927588033. The cubic root of 22706109 is about 283.1702164527.

The spelling of 22706109 in words is "twenty-two million, seven hundred six thousand, one hundred nine".