6978256 has 20 divisors (see below), whose sum is σ = 13561632. Its totient is φ = 3478496.

The previous prime is 6978253. The next prime is 6978281. The reversal of 6978256 is 6528796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9021 + ... + 9763.

Almost surely, 2^6978256 is an apocalyptic number.

It is an amenable number.

6978256 is a deficient number, since it is larger than the sum of its proper divisors (6583376).

6978256 is a wasteful number, since it uses less digits than its factorization.

6978256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338 (or 1332 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 6978256 is about 2641.6388852377. The cubic root of 6978256 is about 191.0948424747.

The spelling of 6978256 in words is "six million, nine hundred seventy-eight thousand, two hundred fifty-six".