889811 has 4 divisors (see below), whose sum is σ = 958272. Its totient is φ = 821352.

The previous prime is 889783. The next prime is 889829. The reversal of 889811 is 118988.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 889811 - 2⁶ = 889747 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 889811.

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 3 ways as a sum of consecutive naturals, for example, 34211 + ... + 34236.

It is an arithmetic number, because the mean of its divisors is an integer number (239568).

2⁸⁸⁹⁸¹¹ is an apocalyptic number.

889811 is a deficient number, since it is larger than the sum of its proper divisors (68461).

889811 is a wasteful number, since it uses less digits than its factorization.

889811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68460.

The product of its digits is 4608, while the sum is 35.

The square root of 889811 is about 943.2979380874. The cubic root of 889811 is about 96.1832077225.

It can be divided in two parts, 88 and 9811, that multiplied together give a palindrome (863368).

The spelling of 889811 in words is "eight hundred eighty-nine thousand, eight hundred eleven".