8866985 has 4 divisors (see below), whose sum is σ = 10640388. Its totient is φ = 7093584.

The previous prime is 8866967. The next prime is 8866993. The reversal of 8866985 is 5896688.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2374681 + 6492304 = 1541^2 + 2548^2 .

It is a cyclic number.

It is not a de Polignac number, because 8866985 - 2¹⁴ = 8850601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886694 + ... + 886703.

It is an arithmetic number, because the mean of its divisors is an integer number (2660097).

Almost surely, 2^8866985 is an apocalyptic number.

It is an amenable number.

8866985 is a deficient number, since it is larger than the sum of its proper divisors (1773403).

8866985 is a wasteful number, since it uses less digits than its factorization.

8866985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773402.

The product of its digits is 829440, while the sum is 50.

The square root of 8866985 is about 2977.7483103849. The cubic root of 8866985 is about 206.9785425882.

The spelling of 8866985 in words is "eight million, eight hundred sixty-six thousand, nine hundred eighty-five".