22066679 has 2 divisors, whose sum is σ = 22066680. Its totient is φ = 22066678.

The previous prime is 22066661. The next prime is 22066691. The reversal of 22066679 is 97666022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22066679 - 2¹⁶ = 22001143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22068679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11033339 + 11033340.

It is an arithmetic number, because the mean of its divisors is an integer number (11033340).

Almost surely, 2^22066679 is an apocalyptic number.

22066679 is a deficient number, since it is larger than the sum of its proper divisors (1).

22066679 is an equidigital number, since it uses as much as digits as its factorization.

22066679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 22066679 is about 4697.5183874041. The cubic root of 22066679 is about 280.4867341843.

The spelling of 22066679 in words is "twenty-two million, sixty-six thousand, six hundred seventy-nine".