889543 has 4 divisors (see below), whose sum is σ = 904680. Its totient is φ = 874408.

The previous prime is 889519. The next prime is 889579. The reversal of 889543 is 345988.

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 889543 - 2¹³ = 881351 is a prime.

It is a Duffinian number.

889543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889043) 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 3 ways as a sum of consecutive naturals, for example, 7480 + ... + 7597.

It is an arithmetic number, because the mean of its divisors is an integer number (226170).

2⁸⁸⁹⁵⁴³ is an apocalyptic number.

889543 is a deficient number, since it is larger than the sum of its proper divisors (15137).

889543 is a wasteful number, since it uses less digits than its factorization.

889543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15136.

The product of its digits is 34560, while the sum is 37.

The square root of 889543 is about 943.1558725895. The cubic root of 889543 is about 96.1735503578.

The spelling of 889543 in words is "eight hundred eighty-nine thousand, five hundred forty-three".