8662706669 has 2 divisors, whose sum is σ = 8662706670. Its totient is φ = 8662706668.

The previous prime is 8662706623. The next prime is 8662706699. The reversal of 8662706669 is 9666072668.

8662706669 is digitally balanced in base 3, 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., 7778358025 + 884348644 = 88195^2 + 29738^2 .

It is a cyclic number.

It is not a de Polignac number, because 8662706669 - 2²⁸ = 8394271213 is a prime.

It is a super-2 number, since 2×8662706669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8662706699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4331353334 + 4331353335.

It is an arithmetic number, because the mean of its divisors is an integer number (4331353335).

Almost surely, 2^8662706669 is an apocalyptic number.

It is an amenable number.

8662706669 is a deficient number, since it is larger than the sum of its proper divisors (1).

8662706669 is an equidigital number, since it uses as much as digits as its factorization.

8662706669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The square root of 8662706669 is about 93073.6625958171. The cubic root of 8662706669 is about 2053.7671495801.

The spelling of 8662706669 in words is "eight billion, six hundred sixty-two million, seven hundred six thousand, six hundred sixty-nine".