854889 has 8 divisors (see below), whose sum is σ = 1302720. Its totient is φ = 488496.

The previous prime is 854881. The next prime is 854897. The reversal of 854889 is 988458.

854889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (854881) and next prime (854897).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 854889 - 2³ = 854881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 854889.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 854889.

It is not an unprimeable number, because it can be changed into a prime (854881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20334 + ... + 20375.

It is an arithmetic number, because the mean of its divisors is an integer number (162840).

2⁸⁵⁴⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

854889 is a deficient number, since it is larger than the sum of its proper divisors (447831).

854889 is a wasteful number, since it uses less digits than its factorization.

854889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40719.

The product of its digits is 92160, while the sum is 42.

The square root of 854889 is about 924.6020765713. The cubic root of 854889 is about 94.9080920910.

The spelling of 854889 in words is "eight hundred fifty-four thousand, eight hundred eighty-nine".