22065739 has 2 divisors, whose sum is σ = 22065740. Its totient is φ = 22065738.

The previous prime is 22065737. The next prime is 22065803. The reversal of 22065739 is 93756022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22065739 - 2¹ = 22065737 is a prime.

It is a super-2 number, since 2×22065739² = 973793675232242, which contains 22 as substring.

Together with 22065737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22065731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11032869 + 11032870.

It is an arithmetic number, because the mean of its divisors is an integer number (11032870).

Almost surely, 2^22065739 is an apocalyptic number.

22065739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22065739 is an equidigital number, since it uses as much as digits as its factorization.

22065739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 22065739 is about 4697.4183335104. The cubic root of 22065739 is about 280.4827513878.

The spelling of 22065739 in words is "twenty-two million, sixty-five thousand, seven hundred thirty-nine".