889845 has 16 divisors (see below), whose sum is σ = 1553472. Its totient is φ = 431360.

The previous prime is 889829. The next prime is 889871. The reversal of 889845 is 548988.

It is not a de Polignac number, because 889845 - 2⁴ = 889829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 889797 and 889806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2532 + ... + 2861.

It is an arithmetic number, because the mean of its divisors is an integer number (97092).

2⁸⁸⁹⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

889845 is a deficient number, since it is larger than the sum of its proper divisors (663627).

889845 is a wasteful number, since it uses less digits than its factorization.

889845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412.

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

The square root of 889845 is about 943.3159597929. The cubic root of 889845 is about 96.1844327719.

The spelling of 889845 in words is "eight hundred eighty-nine thousand, eight hundred forty-five".