889878 has 32 divisors (see below), whose sum is σ = 1975680. Its totient is φ = 264960.

The previous prime is 889877. The next prime is 889879. The reversal of 889878 is 878988.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (889877) and next prime (889879).

Its product of digits (258048) is a multiple of the sum of its prime divisors (252).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6333 + ... + 6471.

It is an arithmetic number, because the mean of its divisors is an integer number (61740).

2⁸⁸⁹⁸⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987840).

889878 is an abundant number, since it is smaller than the sum of its proper divisors (1085802).

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

889878 is a wasteful number, since it uses less digits than its factorization.

889878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252.

The product of its digits is 258048, while the sum is 48.

The square root of 889878 is about 943.3334511190. Note that the first 3 decimals coincide. The cubic root of 889878 is about 96.1856217606.

The spelling of 889878 in words is "eight hundred eighty-nine thousand, eight hundred seventy-eight".