789839389 has 16 divisors (see below), whose sum is σ = 857070720. Its totient is φ = 725623360.

The previous prime is 789839383. The next prime is 789839423. The reversal of 789839389 is 983938987.

It is a cyclic number.

It is not a de Polignac number, because 789839389 - 2⁵ = 789839357 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 789839389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789839383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128394 + ... + 134404.

It is an arithmetic number, because the mean of its divisors is an integer number (53566920).

Almost surely, 2^789839389 is an apocalyptic number.

It is an amenable number.

789839389 is a deficient number, since it is larger than the sum of its proper divisors (67231331).

789839389 is a wasteful number, since it uses less digits than its factorization.

789839389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260.

The product of its digits is 23514624, while the sum is 64.

The square root of 789839389 is about 28104.0813584077. The cubic root of 789839389 is about 924.3708949514.

The spelling of 789839389 in words is "seven hundred eighty-nine million, eight hundred thirty-nine thousand, three hundred eighty-nine".