8866661 has 8 divisors (see below), whose sum is σ = 9296640. Its totient is φ = 8440432.

The previous prime is 8866657. The next prime is 8866667. The reversal of 8866661 is 1666688.

8866661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8866661 - 2² = 8866657 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 4691 + ... + 6303.

It is an arithmetic number, because the mean of its divisors is an integer number (1162080).

Almost surely, 2^8866661 is an apocalyptic number.

It is an amenable number.

8866661 is a deficient number, since it is larger than the sum of its proper divisors (429979).

8866661 is a wasteful number, since it uses less digits than its factorization.

8866661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875.

The product of its digits is 82944, while the sum is 41.

The square root of 8866661 is about 2977.6939063645. The cubic root of 8866661 is about 206.9760215560.

The spelling of 8866661 in words is "eight million, eight hundred sixty-six thousand, six hundred sixty-one".