6978846 has 32 divisors (see below), whose sum is σ = 16139520. Its totient is φ = 1970496.

The previous prime is 6978841. The next prime is 6978869. The reversal of 6978846 is 6488796.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6978795 and 6978804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2805 + ... + 4671.

It is an arithmetic number, because the mean of its divisors is an integer number (504360).

Almost surely, 2^6978846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6978846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8069760).

6978846 is an abundant number, since it is smaller than the sum of its proper divisors (9160674).

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

6978846 is a wasteful number, since it uses less digits than its factorization.

6978846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968.

The product of its digits is 580608, while the sum is 48.

The square root of 6978846 is about 2641.7505559761. The cubic root of 6978846 is about 191.1002279072.

The spelling of 6978846 in words is "six million, nine hundred seventy-eight thousand, eight hundred forty-six".