889739 has 8 divisors (see below), whose sum is σ = 925680. Its totient is φ = 854496.

The previous prime is 889727. The next prime is 889747. The reversal of 889739 is 937988.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 889739.

It is not an unprimeable number, because it can be changed into a prime (889769) 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 7 ways as a sum of consecutive naturals, for example, 5057 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (115710).

2⁸⁸⁹⁷³⁹ is an apocalyptic number.

889739 is a deficient number, since it is larger than the sum of its proper divisors (35941).

889739 is a wasteful number, since it uses less digits than its factorization.

889739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its digits is 108864, while the sum is 44.

The square root of 889739 is about 943.2597733392. The cubic root of 889739 is about 96.1806133971.

The spelling of 889739 in words is "eight hundred eighty-nine thousand, seven hundred thirty-nine".