6879911 has 4 divisors (see below), whose sum is σ = 6889824. Its totient is φ = 6870000.

The previous prime is 6879893. The next prime is 6879913. The reversal of 6879911 is 1199786.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6879911 - 2²² = 2685607 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6879913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3830 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (1722456).

Almost surely, 2^6879911 is an apocalyptic number.

6879911 is a deficient number, since it is larger than the sum of its proper divisors (9913).

6879911 is an equidigital number, since it uses as much as digits as its factorization.

6879911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9912.

The product of its digits is 27216, while the sum is 41.

The square root of 6879911 is about 2622.9584442000. The cubic root of 6879911 is about 190.1928881394.

The spelling of 6879911 in words is "six million, eight hundred seventy-nine thousand, nine hundred eleven".