8859009 has 4 divisors (see below), whose sum is σ = 11812016. Its totient is φ = 5906004.

The previous prime is 8858987. The next prime is 8859029. The reversal of 8859009 is 9009588.

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 not a de Polignac number, because 8859009 - 2⁷ = 8858881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8859029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476499 + ... + 1476504.

It is an arithmetic number, because the mean of its divisors is an integer number (2953004).

Almost surely, 2^8859009 is an apocalyptic number.

It is an amenable number.

8859009 is a deficient number, since it is larger than the sum of its proper divisors (2953007).

8859009 is a wasteful number, since it uses less digits than its factorization.

8859009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953006.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 8859009 is about 2976.4087420917. The cubic root of 8859009 is about 206.9164637608.

The spelling of 8859009 in words is "eight million, eight hundred fifty-nine thousand, nine".