6681885 has 24 divisors (see below), whose sum is σ = 12437856. Its totient is φ = 3054240.

The previous prime is 6681877. The next prime is 6681887. The reversal of 6681885 is 5881866.

It is not a de Polignac number, because 6681885 - 2³ = 6681877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3811 + ... + 5280.

It is an arithmetic number, because the mean of its divisors is an integer number (518244).

Almost surely, 2^6681885 is an apocalyptic number.

It is an amenable number.

6681885 is a deficient number, since it is larger than the sum of its proper divisors (5755971).

6681885 is a wasteful number, since it uses less digits than its factorization.

6681885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9113 (or 9106 counting only the distinct ones).

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

The square root of 6681885 is about 2584.9342351402. The cubic root of 6681885 is about 188.3503069430.

The spelling of 6681885 in words is "six million, six hundred eighty-one thousand, eight hundred eighty-five".