6720824 has 48 divisors (see below), whose sum is σ = 14220360. Its totient is φ = 2974400.

The previous prime is 6720823. The next prime is 6720841. The reversal of 6720824 is 4280276.

6720824 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720821) 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 11 ways as a sum of consecutive naturals, for example, 51239 + ... + 51369.

Almost surely, 2^6720824 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 6720824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7110180).

6720824 is an abundant number, since it is smaller than the sum of its proper divisors (7499536).

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

6720824 is a wasteful number, since it uses less digits than its factorization.

6720824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 6720824 is about 2592.4552069419. The cubic root of 6720824 is about 188.7154719527.

The spelling of 6720824 in words is "six million, seven hundred twenty thousand, eight hundred twenty-four".