6978888 has 96 divisors (see below), whose sum is σ = 22052160. Its totient is φ = 1952640.

The previous prime is 6978883. The next prime is 6978901. The reversal of 6978888 is 8888796.

6978888 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

6978888 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (6978883) 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, 30631 + ... + 30857.

It is an arithmetic number, because the mean of its divisors is an integer number (229710).

Almost surely, 2^6978888 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 6978888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11026080).

6978888 is an abundant number, since it is smaller than the sum of its proper divisors (15073272).

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

6978888 is a wasteful number, since it uses less digits than its factorization.

6978888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 300 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 6978888 is about 2641.7585052385. The cubic root of 6978888 is about 191.1006112654.

The spelling of 6978888 in words is "six million, nine hundred seventy-eight thousand, eight hundred eighty-eight".