889663 has 8 divisors (see below), whose sum is σ = 949248. Its totient is φ = 831864.

The previous prime is 889657. The next prime is 889673. The reversal of 889663 is 366988.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 889663 - 2⁵ = 889631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670 + ... + 1492.

It is an arithmetic number, because the mean of its divisors is an integer number (118656).

2⁸⁸⁹⁶⁶³ is an apocalyptic number.

889663 is a deficient number, since it is larger than the sum of its proper divisors (59585).

889663 is a wasteful number, since it uses less digits than its factorization.

889663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893.

The product of its digits is 62208, while the sum is 40.

The square root of 889663 is about 943.2194866520. The cubic root of 889663 is about 96.1778747907.

The spelling of 889663 in words is "eight hundred eighty-nine thousand, six hundred sixty-three".