6389387 has 2 divisors, whose sum is σ = 6389388. Its totient is φ = 6389386.

The previous prime is 6389371. The next prime is 6389393. The reversal of 6389387 is 7839836.

6389387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6389387 - 2⁴ = 6389371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6389087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194693 + 3194694.

It is an arithmetic number, because the mean of its divisors is an integer number (3194694).

Almost surely, 2^6389387 is an apocalyptic number.

6389387 is a deficient number, since it is larger than the sum of its proper divisors (1).

6389387 is an equidigital number, since it uses as much as digits as its factorization.

6389387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 6389387 is about 2527.7236795188. The cubic root of 6389387 is about 185.5608691007.

It can be divided in two parts, 6389 and 387, that added together give a palindrome (6776).

The spelling of 6389387 in words is "six million, three hundred eighty-nine thousand, three hundred eighty-seven".