6978384 has 180 divisors, whose sum is σ = 24257376. Its totient is φ = 1862784.

The previous prime is 6978383. The next prime is 6978421. The reversal of 6978384 is 4838796.

It is a happy number.

6978384 is digitally balanced in base 5, 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978383) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 162267 + ... + 162309.

Almost surely, 2^6978384 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 6978384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12128688).

6978384 is an abundant number, since it is smaller than the sum of its proper divisors (17278992).

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

6978384 is a wasteful number, since it uses less digits than its factorization.

6978384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 78 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6978384 is about 2641.6631125108. The cubic root of 6978384 is about 191.0960108655.

The spelling of 6978384 in words is "six million, nine hundred seventy-eight thousand, three hundred eighty-four".