6539680 has 48 divisors (see below), whose sum is σ = 17660160. Its totient is φ = 2241792.

The previous prime is 6539671. The next prime is 6539681. The reversal of 6539680 is 869356.

It is not an unprimeable number, because it can be changed into a prime (6539681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1800 + ... + 4039.

It is an arithmetic number, because the mean of its divisors is an integer number (367920).

Almost surely, 2^6539680 is an apocalyptic number.

It is an amenable number.

6539680 is an abundant number, since it is smaller than the sum of its proper divisors (11120480).

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

6539680 is a wasteful number, since it uses less digits than its factorization.

6539680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861 (or 5853 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 6539680 is about 2557.2798047926. The cubic root of 6539680 is about 187.0045467738.

The spelling of 6539680 in words is "six million, five hundred thirty-nine thousand, six hundred eighty".