889890 has 16 divisors (see below), whose sum is σ = 2135808. Its totient is φ = 237296.

The previous prime is 889879. The next prime is 889891. The reversal of 889890 is 98988.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (889891) by changing a digit.

889890 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14802 + ... + 14861.

It is an arithmetic number, because the mean of its divisors is an integer number (133488).

2⁸⁸⁹⁸⁹⁰ is an apocalyptic number.

889890 is an abundant number, since it is smaller than the sum of its proper divisors (1245918).

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

889890 is a wasteful number, since it uses less digits than its factorization.

889890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29673.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 889890 is about 943.3398115207. The cubic root of 889890 is about 96.1860541129.

It can be divided in two parts, 8 and 89890, that added together give a palindrome (89898).

The spelling of 889890 in words is "eight hundred eighty-nine thousand, eight hundred ninety".