22605743 has 2 divisors, whose sum is σ = 22605744. Its totient is φ = 22605742.

The previous prime is 22605721. The next prime is 22605749. The reversal of 22605743 is 34750622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22605743 - 2⁶ = 22605679 is a prime.

It is a super-2 number, since 2×22605743² = 1022039233164098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22605749) 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 as a sum of consecutive naturals, namely, 11302871 + 11302872.

It is an arithmetic number, because the mean of its divisors is an integer number (11302872).

Almost surely, 2^22605743 is an apocalyptic number.

22605743 is a deficient number, since it is larger than the sum of its proper divisors (1).

22605743 is an equidigital number, since it uses as much as digits as its factorization.

22605743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 22605743 is about 4754.5497157985. The cubic root of 22605743 is about 282.7523753000.

The spelling of 22605743 in words is "twenty-two million, six hundred five thousand, seven hundred forty-three".