6859387 has 2 divisors, whose sum is σ = 6859388. Its totient is φ = 6859386.

The previous prime is 6859379. The next prime is 6859409. The reversal of 6859387 is 7839586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6859387 - 2³ = 6859379 is a prime.

It is not a weakly prime, because it can be changed into another prime (6859327) 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, 3429693 + 3429694.

It is an arithmetic number, because the mean of its divisors is an integer number (3429694).

Almost surely, 2^6859387 is an apocalyptic number.

6859387 is a deficient number, since it is larger than the sum of its proper divisors (1).

6859387 is an equidigital number, since it uses as much as digits as its factorization.

6859387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 6859387 is about 2619.0431458836. The cubic root of 6859387 is about 190.0035733400.

The spelling of 6859387 in words is "six million, eight hundred fifty-nine thousand, three hundred eighty-seven".