889009 has 4 divisors (see below), whose sum is σ = 969840. Its totient is φ = 808180.

The previous prime is 889001. The next prime is 889027. The reversal of 889009 is 900988.

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 889009 - 2³ = 889001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889001) 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, 40399 + ... + 40420.

It is an arithmetic number, because the mean of its divisors is an integer number (242460).

2⁸⁸⁹⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

889009 is a deficient number, since it is larger than the sum of its proper divisors (80831).

889009 is a wasteful number, since it uses less digits than its factorization.

889009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80830.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 889009 is about 942.8727379663. The cubic root of 889009 is about 96.1543019137.

The spelling of 889009 in words is "eight hundred eighty-nine thousand, nine".