6728530 has 16 divisors (see below), whose sum is σ = 12142080. Its totient is φ = 2684592.

The previous prime is 6728521. The next prime is 6728531. The reversal of 6728530 is 358276.

It is a junction number, because it is equal to n+sod(n) for n = 6728492 and 6728501.

It is not an unprimeable number, because it can be changed into a prime (6728531) 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, 5647 + ... + 6733.

It is an arithmetic number, because the mean of its divisors is an integer number (758880).

Almost surely, 2^6728530 is an apocalyptic number.

6728530 is a deficient number, since it is larger than the sum of its proper divisors (5413550).

6728530 is a wasteful number, since it uses less digits than its factorization.

6728530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 6728530 is about 2593.9410170626. The cubic root of 6728530 is about 188.7875705513.

The spelling of 6728530 in words is "six million, seven hundred twenty-eight thousand, five hundred thirty".