889866 has 24 divisors (see below), whose sum is σ = 2000544. Its totient is φ = 296460.

The previous prime is 889829. The next prime is 889871. The reversal of 889866 is 668988.

It is a super-2 number, since 2×889866² = 1583722995912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430 + ... + 1401.

It is an arithmetic number, because the mean of its divisors is an integer number (83356).

2⁸⁸⁹⁸⁶⁶ is an apocalyptic number.

889866 is an abundant number, since it is smaller than the sum of its proper divisors (1110678).

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

889866 is a wasteful number, since it uses less digits than its factorization.

889866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848 (or 1836 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 889866 is about 943.3270906743. The cubic root of 889866 is about 96.1851894045.

The spelling of 889866 in words is "eight hundred eighty-nine thousand, eight hundred sixty-six".