6725680 has 80 divisors (see below), whose sum is σ = 17498880. Its totient is φ = 2386944.

The previous prime is 6725657. The next prime is 6725687. The reversal of 6725680 is 865276.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725687) 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, 30049 + ... + 30271.

It is an arithmetic number, because the mean of its divisors is an integer number (218736).

Almost surely, 2^6725680 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 6725680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8749440).

6725680 is an abundant number, since it is smaller than the sum of its proper divisors (10773200).

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

6725680 is a wasteful number, since it uses less digits than its factorization.

6725680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 6725680 is about 2593.3916017447. The cubic root of 6725680 is about 188.7609119022.

The spelling of 6725680 in words is "six million, seven hundred twenty-five thousand, six hundred eighty".