22716691 has 2 divisors, whose sum is σ = 22716692. Its totient is φ = 22716690.

The previous prime is 22716677. The next prime is 22716713. The reversal of 22716691 is 19661722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22716691 - 2⁹ = 22716179 is a prime.

It is not a weakly prime, because it can be changed into another prime (22716671) 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, 11358345 + 11358346.

It is an arithmetic number, because the mean of its divisors is an integer number (11358346).

Almost surely, 2^22716691 is an apocalyptic number.

22716691 is a deficient number, since it is larger than the sum of its proper divisors (1).

22716691 is an equidigital number, since it uses as much as digits as its factorization.

22716691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 22716691 is about 4766.2029960966. The cubic root of 22716691 is about 283.2141993569.

The spelling of 22716691 in words is "twenty-two million, seven hundred sixteen thousand, six hundred ninety-one".