6859959 has 16 divisors (see below), whose sum is σ = 9999360. Its totient is φ = 4164480.

The previous prime is 6859943. The next prime is 6859961. The reversal of 6859959 is 9599586.

6859959 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6859959 - 2⁴ = 6859943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859939) 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 15 ways as a sum of consecutive naturals, for example, 589 + ... + 3750.

It is an arithmetic number, because the mean of its divisors is an integer number (624960).

Almost surely, 2^6859959 is an apocalyptic number.

6859959 is a deficient number, since it is larger than the sum of its proper divisors (3139401).

6859959 is a wasteful number, since it uses less digits than its factorization.

6859959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390.

The product of its digits is 874800, while the sum is 51.

The square root of 6859959 is about 2619.1523437937. The cubic root of 6859959 is about 190.0088546197.

The spelling of 6859959 in words is "six million, eight hundred fifty-nine thousand, nine hundred fifty-nine".