6879591 has 6 divisors (see below), whose sum is σ = 9937200. Its totient is φ = 4586388.

The previous prime is 6879589. The next prime is 6879643. The reversal of 6879591 is 1959786.

It is not a de Polignac number, because 6879591 - 2¹ = 6879589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6879511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 382191 + ... + 382208.

It is an arithmetic number, because the mean of its divisors is an integer number (1656200).

Almost surely, 2^6879591 is an apocalyptic number.

6879591 is a deficient number, since it is larger than the sum of its proper divisors (3057609).

6879591 is a wasteful number, since it uses less digits than its factorization.

6879591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764405 (or 764402 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 6879591 is about 2622.8974436680. The cubic root of 6879591 is about 190.1899393286.

It can be divided in two parts, 68795 and 91, that added together give a palindrome (68886).

The spelling of 6879591 in words is "six million, eight hundred seventy-nine thousand, five hundred ninety-one".