8666797 has 2 divisors, whose sum is σ = 8666798. Its totient is φ = 8666796.

The previous prime is 8666783. The next prime is 8666807. The reversal of 8666797 is 7976668.

8666797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4447881 + 4218916 = 2109^2 + 2054^2 .

It is a cyclic number.

It is not a de Polignac number, because 8666797 - 2¹⁹ = 8142509 is a prime.

It is a super-2 number, since 2×8666797² = 150226740478418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8666797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8666747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4333398 + 4333399.

It is an arithmetic number, because the mean of its divisors is an integer number (4333399).

Almost surely, 2^8666797 is an apocalyptic number.

It is an amenable number.

8666797 is a deficient number, since it is larger than the sum of its proper divisors (1).

8666797 is an equidigital number, since it uses as much as digits as its factorization.

8666797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 49.

The square root of 8666797 is about 2943.9424247087. The cubic root of 8666797 is about 205.4090345933.

The spelling of 8666797 in words is "eight million, six hundred sixty-six thousand, seven hundred ninety-seven".