6978546 has 24 divisors (see below), whose sum is σ = 15195180. Its totient is φ = 2314656.

The previous prime is 6978511. The next prime is 6978547. The reversal of 6978546 is 6458796.

It can be written as a sum of positive squares in 2 ways, for example, as 6702921 + 275625 = 2589^2 + 525^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6978547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3276 + ... + 4968.

Almost surely, 2^6978546 is an apocalyptic number.

6978546 is an abundant number, since it is smaller than the sum of its proper divisors (8216634).

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

6978546 is a wasteful number, since it uses less digits than its factorization.

6978546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930 (or 1927 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 6978546 is about 2641.6937748346. The cubic root of 6978546 is about 191.0974895896.

The spelling of 6978546 in words is "six million, nine hundred seventy-eight thousand, five hundred forty-six".