389399 has 2 divisors, whose sum is σ = 389400. Its totient is φ = 389398.

The previous prime is 389381. The next prime is 389401. The reversal of 389399 is 993983.

It is a strong prime.

It is an emirp because it is prime and its reverse (993983) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389399 is a prime.

Together with 389401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389369) 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 as a sum of consecutive naturals, namely, 194699 + 194700.

It is an arithmetic number, because the mean of its divisors is an integer number (194700).

2³⁸⁹³⁹⁹ is an apocalyptic number.

389399 is a deficient number, since it is larger than the sum of its proper divisors (1).

389399 is an equidigital number, since it uses as much as digits as its factorization.

389399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 41.

The square root of 389399 is about 624.0184292150. The cubic root of 389399 is about 73.0238865973.

The spelling of 389399 in words is "three hundred eighty-nine thousand, three hundred ninety-nine".