8626669 has 2 divisors, whose sum is σ = 8626670. Its totient is φ = 8626668.

The previous prime is 8626643. The next prime is 8626691. The reversal of 8626669 is 9666268.

It is a happy number.

8626669 is digitally balanced in base 2 and base 3, because in such bases 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., 4473225 + 4153444 = 2115^2 + 2038^2 .

It is a cyclic number.

It is not a de Polignac number, because 8626669 - 2¹¹ = 8624621 is a prime.

It is a super-2 number, since 2×8626669² = 148838836071122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8626699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4313334 + 4313335.

It is an arithmetic number, because the mean of its divisors is an integer number (4313335).

Almost surely, 2^8626669 is an apocalyptic number.

It is an amenable number.

8626669 is a deficient number, since it is larger than the sum of its proper divisors (1).

8626669 is an equidigital number, since it uses as much as digits as its factorization.

8626669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 8626669 is about 2937.1191668027. The cubic root of 8626669 is about 205.0915236774.

The spelling of 8626669 in words is "eight million, six hundred twenty-six thousand, six hundred sixty-nine".