22066739 has 2 divisors, whose sum is σ = 22066740. Its totient is φ = 22066738.

The previous prime is 22066721. The next prime is 22066741. The reversal of 22066739 is 93766022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22066739 - 2⁸ = 22066483 is a prime.

Together with 22066741, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22066699 and 22066708.

It is not a weakly prime, because it can be changed into another prime (22066789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11033369 + 11033370.

It is an arithmetic number, because the mean of its divisors is an integer number (11033370).

Almost surely, 2^22066739 is an apocalyptic number.

22066739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22066739 is an equidigital number, since it uses as much as digits as its factorization.

22066739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 22066739 is about 4697.5247737505. The cubic root of 22066739 is about 280.4869884015.

The spelling of 22066739 in words is "twenty-two million, sixty-six thousand, seven hundred thirty-nine".