6978944 has 32 divisors (see below), whose sum is σ = 15891600. Its totient is φ = 2990592.

The previous prime is 6978941. The next prime is 6978973. The reversal of 6978944 is 4498796.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2999 + ... + 4790.

Almost surely, 2^6978944 is an apocalyptic number.

6978944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6978944 is an abundant number, since it is smaller than the sum of its proper divisors (8912656).

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

6978944 is an equidigital number, since it uses as much as digits as its factorization.

6978944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810 (or 7798 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 6978944 is about 2641.7691042179. The cubic root of 6978944 is about 191.1011224072.

The spelling of 6978944 in words is "six million, nine hundred seventy-eight thousand, nine hundred forty-four".