2208566797 has 2 divisors, whose sum is σ = 2208566798. Its totient is φ = 2208566796.

The previous prime is 2208566771. The next prime is 2208566813. The reversal of 2208566797 is 7976658022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1525214916 + 683351881 = 39054^2 + 26141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2208566797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2208564797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104283398 + 1104283399.

It is an arithmetic number, because the mean of its divisors is an integer number (1104283399).

Almost surely, 2^2208566797 is an apocalyptic number.

It is an amenable number.

2208566797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2208566797 is an equidigital number, since it uses as much as digits as its factorization.

2208566797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 2208566797 is about 46995.3912314814. The cubic root of 2208566797 is about 1302.2774274462.

The spelling of 2208566797 in words is "two billion, two hundred eight million, five hundred sixty-six thousand, seven hundred ninety-seven".