6981328 has 40 divisors (see below), whose sum is σ = 14391936. Its totient is φ = 3273600.

The previous prime is 6981323. The next prime is 6981329. The reversal of 6981328 is 8231896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22293 + ... + 22603.

Almost surely, 2^6981328 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 6981328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7195968).

6981328 is an abundant number, since it is smaller than the sum of its proper divisors (7410608).

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

6981328 is a wasteful number, since it uses less digits than its factorization.

6981328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 397 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 6981328 is about 2642.2202784779. The cubic root of 6981328 is about 191.1228799114.

The spelling of 6981328 in words is "six million, nine hundred eighty-one thousand, three hundred twenty-eight".