8866009 has 4 divisors (see below), whose sum is σ = 8908240. Its totient is φ = 8823780.

The previous prime is 8866007. The next prime is 8866019. The reversal of 8866009 is 9006688.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8866009 - 2¹ = 8866007 is a prime.

It is a super-2 number, since 2×8866009² = 157212231176162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8866003) by changing a digit.

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, 20799 + ... + 21220.

It is an arithmetic number, because the mean of its divisors is an integer number (2227060).

Almost surely, 2^8866009 is an apocalyptic number.

It is an amenable number.

8866009 is a deficient number, since it is larger than the sum of its proper divisors (42231).

8866009 is a wasteful number, since it uses less digits than its factorization.

8866009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42230.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 8866009 is about 2977.5844236562. The cubic root of 8866009 is about 206.9709481816.

The spelling of 8866009 in words is "eight million, eight hundred sixty-six thousand, nine".