889404 has 24 divisors (see below), whose sum is σ = 2094288. Its totient is φ = 293760.

The previous prime is 889391. The next prime is 889411. The reversal of 889404 is 404988.

889404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374 + ... + 1914.

It is an arithmetic number, because the mean of its divisors is an integer number (87262).

2⁸⁸⁹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

889404 is an abundant number, since it is smaller than the sum of its proper divisors (1204884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889404 is a wasteful number, since it uses less digits than its factorization.

889404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 889404 is about 943.0821809365. The cubic root of 889404 is about 96.1685407368.

Subtracting from 889404 its reverse (404988), we obtain a square (484416 = 696²).

The spelling of 889404 in words is "eight hundred eighty-nine thousand, four hundred four".