889742 has 16 divisors (see below), whose sum is σ = 1557600. Its totient is φ = 381024.

The previous prime is 889727. The next prime is 889747. The reversal of 889742 is 247988.

It is a junction number, because it is equal to n+sod(n) for n = 889696 and 889705.

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 889742.

It is not an unprimeable number, because it can be changed into a prime (889747) by changing a digit.

889742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 38 + ... + 1334.

It is an arithmetic number, because the mean of its divisors is an integer number (97350).

2⁸⁸⁹⁷⁴² is an apocalyptic number.

889742 is a deficient number, since it is larger than the sum of its proper divisors (667858).

889742 is a wasteful number, since it uses less digits than its factorization.

889742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1306 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 889742 is about 943.2613635679. The cubic root of 889742 is about 96.1807214968.

The spelling of 889742 in words is "eight hundred eighty-nine thousand, seven hundred forty-two".