6981856 has 48 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 2943360.

The previous prime is 6981853. The next prime is 6981859. The reversal of 6981856 is 6581896.

It is an interprime number because it is at equal distance from previous prime (6981853) and next prime (6981859).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15685 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^6981856 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 6981856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7983360).

6981856 is an abundant number, since it is smaller than the sum of its proper divisors (8984864).

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

6981856 is a wasteful number, since it uses less digits than its factorization.

6981856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 519 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 6981856 is about 2642.3201925580. The cubic root of 6981856 is about 191.1276980175.

The spelling of 6981856 in words is "six million, nine hundred eighty-one thousand, eight hundred fifty-six".