6724720 has 20 divisors (see below), whose sum is σ = 15635160. Its totient is φ = 2689856.

The previous prime is 6724709. The next prime is 6724721. The reversal of 6724720 is 274276.

6724720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6724721) 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, 41950 + ... + 42109.

It is an arithmetic number, because the mean of its divisors is an integer number (781758).

Almost surely, 2^6724720 is an apocalyptic number.

It is an amenable number.

6724720 is an abundant number, since it is smaller than the sum of its proper divisors (8910440).

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

6724720 is a wasteful number, since it uses less digits than its factorization.

6724720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84072 (or 84066 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 6724720 is about 2593.2065093239. The cubic root of 6724720 is about 188.7519304511.

Adding to 6724720 its reverse (274276), we get a palindrome (6998996).

The spelling of 6724720 in words is "six million, seven hundred twenty-four thousand, seven hundred twenty".