889863 has 8 divisors (see below), whose sum is σ = 1277808. Its totient is φ = 547584.

The previous prime is 889829. The next prime is 889871. The reversal of 889863 is 368988.

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

It is not a de Polignac number, because 889863 - 2⁹ = 889351 is a prime.

889863 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 889863.

It is not an unprimeable number, because it can be changed into a prime (889873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11370 + ... + 11447.

It is an arithmetic number, because the mean of its divisors is an integer number (159726).

2⁸⁸⁹⁸⁶³ is an apocalyptic number.

889863 is a deficient number, since it is larger than the sum of its proper divisors (387945).

889863 is a wasteful number, since it uses less digits than its factorization.

889863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22833.

The product of its digits is 82944, while the sum is 42.

The square root of 889863 is about 943.3255005564. The cubic root of 889863 is about 96.1850813149.

The spelling of 889863 in words is "eight hundred eighty-nine thousand, eight hundred sixty-three".