789389 has 2 divisors, whose sum is σ = 789390. Its totient is φ = 789388.

The previous prime is 789377. The next prime is 789391. The reversal of 789389 is 983987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688900 + 100489 = 830^2 + 317^2 .

It is an emirp because it is prime and its reverse (983987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 789389 - 2⁸ = 789133 is a prime.

It is a Sophie Germain prime.

Together with 789391, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (789589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394694 + 394695.

It is an arithmetic number, because the mean of its divisors is an integer number (394695).

2⁷⁸⁹³⁸⁹ is an apocalyptic number.

It is an amenable number.

789389 is a deficient number, since it is larger than the sum of its proper divisors (1).

789389 is an equidigital number, since it uses as much as digits as its factorization.

789389 is an odious number, because the sum of its binary digits is odd.

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

The square root of 789389 is about 888.4756608934. The cubic root of 789389 is about 92.4195160641.

The spelling of 789389 in words is "seven hundred eighty-nine thousand, three hundred eighty-nine".