6881568 has 48 divisors (see below), whose sum is σ = 18275040. Its totient is φ = 2267136.

The previous prime is 6881551. The next prime is 6881579. The reversal of 6881568 is 8651886.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8943 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (380730).

Almost surely, 2^6881568 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 6881568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9137520).

6881568 is an abundant number, since it is smaller than the sum of its proper divisors (11393472).

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

6881568 is a wasteful number, since it uses less digits than its factorization.

6881568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 841 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 6881568 is about 2623.2742898904. The cubic root of 6881568 is about 190.2081559880.

The spelling of 6881568 in words is "six million, eight hundred eighty-one thousand, five hundred sixty-eight".