6535728 has 90 divisors (see below), whose sum is σ = 19442332. Its totient is φ = 2125440.

The previous prime is 6535709. The next prime is 6535741. The reversal of 6535728 is 8275356.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (50400) is a multiple of the sum of its prime factors (105).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 6535692 and 6535701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 159388 + ... + 159428.

Almost surely, 2^6535728 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 6535728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9721166).

6535728 is an abundant number, since it is smaller than the sum of its proper divisors (12906604).

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

6535728 is an equidigital number, since it uses as much as digits as its factorization.

6535728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 46 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 6535728 is about 2556.5069919717. The cubic root of 6535728 is about 186.9668695537.

The spelling of 6535728 in words is "six million, five hundred thirty-five thousand, seven hundred twenty-eight".