6981888 has 36 divisors (see below), whose sum is σ = 18584048. Its totient is φ = 2327040.

The previous prime is 6981859. The next prime is 6981889. The reversal of 6981888 is 8881896.

6981888 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (6981889) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3778 + ... + 5313.

Almost surely, 2^6981888 is an apocalyptic number.

It is an amenable number.

6981888 is an abundant number, since it is smaller than the sum of its proper divisors (11602160).

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

6981888 is an equidigital number, since it uses as much as digits as its factorization.

6981888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110 (or 9096 counting only the distinct ones).

The product of its digits is 221184, while the sum is 48.

The square root of 6981888 is about 2642.3262478354. The cubic root of 6981888 is about 191.1279900161.

The spelling of 6981888 in words is "six million, nine hundred eighty-one thousand, eight hundred eighty-eight".