6728704 has 22 divisors (see below), whose sum is σ = 13452884. Its totient is φ = 3363840.

The previous prime is 6728663. The next prime is 6728713. The reversal of 6728704 is 4078276.

It is a self number, because there is not a number n which added to its sum of digits gives 6728704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2262 + ... + 4309.

Almost surely, 2^6728704 is an apocalyptic number.

6728704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6728704 is a deficient number, since it is larger than the sum of its proper divisors (6724180).

6728704 is an equidigital number, since it uses as much as digits as its factorization.

6728704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591 (or 6573 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 6728704 is about 2593.9745565445. The cubic root of 6728704 is about 188.7891978881.

The spelling of 6728704 in words is "six million, seven hundred twenty-eight thousand, seven hundred four".