6911868 has 48 divisors (see below), whose sum is σ = 17095680. Its totient is φ = 2169024.

The previous prime is 6911857. The next prime is 6911873. The reversal of 6911868 is 8681196.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21646 + ... + 21962.

It is an arithmetic number, because the mean of its divisors is an integer number (356160).

Almost surely, 2^6911868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6911868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8547840).

6911868 is an abundant number, since it is smaller than the sum of its proper divisors (10183812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6911868 is a wasteful number, since it uses less digits than its factorization.

6911868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 424 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 6911868 is about 2629.0431719544. The cubic root of 6911868 is about 190.4869136304.

The spelling of 6911868 in words is "six million, nine hundred eleven thousand, eight hundred sixty-eight".