6879831 has 16 divisors (see below), whose sum is σ = 10543104. Its totient is φ = 3909024.

The previous prime is 6879823. The next prime is 6879839. The reversal of 6879831 is 1389786.

It is an interprime number because it is at equal distance from previous prime (6879823) and next prime (6879839).

It is not a de Polignac number, because 6879831 - 2³ = 6879823 is a prime.

It is a super-2 number, since 2×6879831² = 94664149177122, which contains 22 as substring.

6879831 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6879839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3306 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (658944).

Almost surely, 2^6879831 is an apocalyptic number.

6879831 is a deficient number, since it is larger than the sum of its proper divisors (3663273).

6879831 is a wasteful number, since it uses less digits than its factorization.

6879831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its digits is 72576, while the sum is 42.

The square root of 6879831 is about 2622.9431942000. The cubic root of 6879831 is about 190.1921509453.

The spelling of 6879831 in words is "six million, eight hundred seventy-nine thousand, eight hundred thirty-one".