6704720 has 80 divisors (see below), whose sum is σ = 17945280. Its totient is φ = 2304000.

The previous prime is 6704717. The next prime is 6704729. The reversal of 6704720 is 274076.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 6704720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6704729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16520 + ... + 16920.

It is an arithmetic number, because the mean of its divisors is an integer number (224316).

Almost surely, 2^6704720 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 6704720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8972640).

6704720 is an abundant number, since it is smaller than the sum of its proper divisors (11240560).

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

6704720 is a wasteful number, since it uses less digits than its factorization.

6704720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 6704720 is about 2589.3474081320. The cubic root of 6704720 is about 188.5646221690.

Adding to 6704720 its reverse (274076), we get a palindrome (6978796).

The spelling of 6704720 in words is "six million, seven hundred four thousand, seven hundred twenty".