6506728 has 16 divisors (see below), whose sum is σ = 12257280. Its totient is φ = 3238128.

The previous prime is 6506719. The next prime is 6506779. The reversal of 6506728 is 8276056.

It is a junction number, because it is equal to n+sod(n) for n = 6506693 and 6506702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25 + ... + 3607.

It is an arithmetic number, because the mean of its divisors is an integer number (766080).

Almost surely, 2^6506728 is an apocalyptic number.

It is an amenable number.

6506728 is a deficient number, since it is larger than the sum of its proper divisors (5750552).

6506728 is a wasteful number, since it uses less digits than its factorization.

6506728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816 (or 3812 counting only the distinct ones).

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

The square root of 6506728 is about 2550.8288848921. The cubic root of 6506728 is about 186.6899262399.

The spelling of 6506728 in words is "six million, five hundred six thousand, seven hundred twenty-eight".