889723 has 4 divisors (see below), whose sum is σ = 891648. Its totient is φ = 887800.

The previous prime is 889703. The next prime is 889727. The reversal of 889723 is 327988.

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 889723 - 2⁹ = 889211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889727) 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 3 ways as a sum of consecutive naturals, for example, 198 + ... + 1348.

It is an arithmetic number, because the mean of its divisors is an integer number (222912).

2⁸⁸⁹⁷²³ is an apocalyptic number.

889723 is a deficient number, since it is larger than the sum of its proper divisors (1925).

889723 is a wasteful number, since it uses less digits than its factorization.

889723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924.

The product of its digits is 24192, while the sum is 37.

The square root of 889723 is about 943.2512920744. The cubic root of 889723 is about 96.1800368613.

The spelling of 889723 in words is "eight hundred eighty-nine thousand, seven hundred twenty-three".