6881560 has 48 divisors (see below), whose sum is σ = 18016560. Its totient is φ = 2358720.

The previous prime is 6881551. The next prime is 6881579. The reversal of 6881560 is 651886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205 + ... + 3715.

It is an arithmetic number, because the mean of its divisors is an integer number (375345).

Almost surely, 2^6881560 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 6881560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9008280).

6881560 is an abundant number, since it is smaller than the sum of its proper divisors (11135000).

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

6881560 is a wasteful number, since it uses less digits than its factorization.

6881560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536 (or 3525 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 6881560 is about 2623.2727650780. The cubic root of 6881560 is about 190.2080822807.

The spelling of 6881560 in words is "six million, eight hundred eighty-one thousand, five hundred sixty".