8666607 has 24 divisors (see below), whose sum is σ = 12457984. Its totient is φ = 5355504.

The previous prime is 8666597. The next prime is 8666627. The reversal of 8666607 is 7066668.

8666607 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8666607 - 2⁴ = 8666591 is a prime.

It is a super-2 number, since 2×8666607² = 150220153784898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68178 + ... + 68304.

Almost surely, 2^8666607 is an apocalyptic number.

8666607 is a deficient number, since it is larger than the sum of its proper divisors (3791377).

8666607 is a wasteful number, since it uses less digits than its factorization.

8666607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 8666607 is about 2943.9101548791. The cubic root of 8666607 is about 205.4075335388.

The spelling of 8666607 in words is "eight million, six hundred sixty-six thousand, six hundred seven".