8866666 has 4 divisors (see below), whose sum is σ = 13300002. Its totient is φ = 4433332.

The previous prime is 8866657. The next prime is 8866667. The reversal of 8866666 is 6666688.

8866666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8094025 + 772641 = 2845^2 + 879^2 .

8866666 is a modest number, since divided by 6666 gives 886 as remainder.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8866667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2216665 + ... + 2216668.

Almost surely, 2^8866666 is an apocalyptic number.

8866666 is a deficient number, since it is larger than the sum of its proper divisors (4433336).

8866666 is a wasteful number, since it uses less digits than its factorization.

8866666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433335.

The product of its digits is 497664, while the sum is 46.

The square root of 8866666 is about 2977.6947459402. The cubic root of 8866666 is about 206.9760604613.

The spelling of 8866666 in words is "eight million, eight hundred sixty-six thousand, six hundred sixty-six".