889143 has 12 divisors (see below), whose sum is σ = 1252728. Its totient is φ = 560880.

The previous prime is 889139. The next prime is 889171. The reversal of 889143 is 341988.

It is not a de Polignac number, because 889143 - 2² = 889139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673 + ... + 1493.

It is an arithmetic number, because the mean of its divisors is an integer number (104394).

2⁸⁸⁹¹⁴³ is an apocalyptic number.

889143 is a deficient number, since it is larger than the sum of its proper divisors (363585).

889143 is a wasteful number, since it uses less digits than its factorization.

889143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 843 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 889143 is about 942.9437947195. The cubic root of 889143 is about 96.1591327719.

The spelling of 889143 in words is "eight hundred eighty-nine thousand, one hundred forty-three".