22709641 has 2 divisors, whose sum is σ = 22709642. Its totient is φ = 22709640.

The previous prime is 22709627. The next prime is 22709647. The reversal of 22709641 is 14690722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20967241 + 1742400 = 4579^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 22709641 - 2⁹ = 22709129 is a prime.

It is not a weakly prime, because it can be changed into another prime (22709647) 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, 11354820 + 11354821.

It is an arithmetic number, because the mean of its divisors is an integer number (11354821).

Almost surely, 2^22709641 is an apocalyptic number.

It is an amenable number.

22709641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22709641 is an equidigital number, since it uses as much as digits as its factorization.

22709641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22709641 is about 4765.4633562750. The cubic root of 22709641 is about 283.1848983364.

It can be divided in two parts, 2270 and 9641, that added together give a palindrome (11911).

The spelling of 22709641 in words is "twenty-two million, seven hundred nine thousand, six hundred forty-one".