8168669 has 2 divisors, whose sum is σ = 8168670. Its totient is φ = 8168668.

The previous prime is 8168623. The next prime is 8168681. The reversal of 8168669 is 9668618.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7425625 + 743044 = 2725^2 + 862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8168669 is a prime.

It is a super-2 number, since 2×8168669² = 133454306463122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8168269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4084334 + 4084335.

It is an arithmetic number, because the mean of its divisors is an integer number (4084335).

Almost surely, 2^8168669 is an apocalyptic number.

It is an amenable number.

8168669 is a deficient number, since it is larger than the sum of its proper divisors (1).

8168669 is an equidigital number, since it uses as much as digits as its factorization.

8168669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The square root of 8168669 is about 2858.0883471299. The cubic root of 8168669 is about 201.3958108977.

The spelling of 8168669 in words is "eight million, one hundred sixty-eight thousand, six hundred sixty-nine".