5720728 has 32 divisors (see below), whose sum is σ = 11738160. Its totient is φ = 2597760.

The previous prime is 5720711. The next prime is 5720731. The reversal of 5720728 is 8270275.

It is a self number, because there is not a number n which added to its sum of digits gives 5720728.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6558 + ... + 7378.

Almost surely, 2^5720728 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 5720728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5869080).

5720728 is an abundant number, since it is smaller than the sum of its proper divisors (6017432).

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

5720728 is a wasteful number, since it uses less digits than its factorization.

5720728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 5720728 is about 2391.8043398238. The cubic root of 5720728 is about 178.8478675764.

The spelling of 5720728 in words is "five million, seven hundred twenty thousand, seven hundred twenty-eight".