8549889 has 4 divisors (see below), whose sum is σ = 11399856. Its totient is φ = 5699924.

The previous prime is 8549887. The next prime is 8549903. The reversal of 8549889 is 9889458.

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 8549889 - 2¹ = 8549887 is a prime.

8549889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8549881) 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, 1424979 + ... + 1424984.

It is an arithmetic number, because the mean of its divisors is an integer number (2849964).

Almost surely, 2^8549889 is an apocalyptic number.

It is an amenable number.

8549889 is a deficient number, since it is larger than the sum of its proper divisors (2849967).

8549889 is a wasteful number, since it uses less digits than its factorization.

8549889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849966.

The product of its digits is 829440, while the sum is 51.

The square root of 8549889 is about 2924.0193227816. The cubic root of 8549889 is about 204.4812503857.

The spelling of 8549889 in words is "eight million, five hundred forty-nine thousand, eight hundred eighty-nine".