6543968 has 24 divisors (see below), whose sum is σ = 13234032. Its totient is φ = 3182976.

The previous prime is 6543947. The next prime is 6543973. The reversal of 6543968 is 8693456.

It is a congruent number.

It is an unprimeable number.

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, 1580 + ... + 3947.

It is an arithmetic number, because the mean of its divisors is an integer number (551418).

Almost surely, 2^6543968 is an apocalyptic number.

It is an amenable number.

6543968 is an abundant number, since it is smaller than the sum of its proper divisors (6690064).

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

6543968 is a wasteful number, since it uses less digits than its factorization.

6543968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574 (or 5566 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 6543968 is about 2558.1180582608. The cubic root of 6543968 is about 187.0454101545.

The spelling of 6543968 in words is "six million, five hundred forty-three thousand, nine hundred sixty-eight".