8666636 has 24 divisors (see below), whose sum is σ = 16821840. Its totient is φ = 3873600.

The previous prime is 8666627. The next prime is 8666681. The reversal of 8666636 is 6366668.

8666636 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8666636² = 150221159112992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8666593 and 8666602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (700910).

Almost surely, 2^8666636 is an apocalyptic number.

It is an amenable number.

8666636 is a deficient number, since it is larger than the sum of its proper divisors (8155204).

8666636 is a wasteful number, since it uses less digits than its factorization.

8666636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305 (or 3303 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 8666636 is about 2943.9150802970. The cubic root of 8666636 is about 205.4077626486.

Subtracting from 8666636 its reverse (6366668), we obtain a cube (2299968 = 132³).

The spelling of 8666636 in words is "eight million, six hundred sixty-six thousand, six hundred thirty-six".