789439 has 6 divisors (see below), whose sum is σ = 918384. Its totient is φ = 676620.

The previous prime is 789419. The next prime is 789443. The reversal of 789439 is 934987.

It is not a de Polignac number, because 789439 - 2⁵ = 789407 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 (789419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8007 + ... + 8104.

It is an arithmetic number, because the mean of its divisors is an integer number (153064).

2⁷⁸⁹⁴³⁹ is an apocalyptic number.

789439 is a deficient number, since it is larger than the sum of its proper divisors (128945).

789439 is a wasteful number, since it uses less digits than its factorization.

789439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16125 (or 16118 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 789439 is about 888.5037985287. The cubic root of 789439 is about 92.4214673109.

The spelling of 789439 in words is "seven hundred eighty-nine thousand, four hundred thirty-nine".