22667971 has 2 divisors, whose sum is σ = 22667972. Its totient is φ = 22667970.

The previous prime is 22667933. The next prime is 22667999. The reversal of 22667971 is 17976622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22667971 - 2⁹ = 22667459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22667471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11333985 + 11333986.

It is an arithmetic number, because the mean of its divisors is an integer number (11333986).

Almost surely, 2^22667971 is an apocalyptic number.

22667971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22667971 is an equidigital number, since it uses as much as digits as its factorization.

22667971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 22667971 is about 4761.0892661239. The cubic root of 22667971 is about 283.0115866350.

The spelling of 22667971 in words is "twenty-two million, six hundred sixty-seven thousand, nine hundred seventy-one".