6859375 has 14 divisors (see below), whose sum is σ = 8593640. Its totient is φ = 5475000.

The previous prime is 6859367. The next prime is 6859379. The reversal of 6859375 is 5739586.

It is not a de Polignac number, because 6859375 - 2³ = 6859367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859379) 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 in 13 ways as a sum of consecutive naturals, for example, 15406 + ... + 15844.

Almost surely, 2^6859375 is an apocalyptic number.

6859375 is a deficient number, since it is larger than the sum of its proper divisors (1734265).

6859375 is an frugal number, since it uses more digits than its factorization.

6859375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 444 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 6859375 is about 2619.0408549696. The cubic root of 6859375 is about 190.0034625408.

The spelling of 6859375 in words is "six million, eight hundred fifty-nine thousand, three hundred seventy-five".