5497728 has 64 divisors (see below), whose sum is σ = 14851200. Its totient is φ = 1801728.

The previous prime is 5497721. The next prime is 5497753. The reversal of 5497728 is 8277945.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 5497728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5497721) 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, 39483 + ... + 39621.

It is an arithmetic number, because the mean of its divisors is an integer number (232050).

Almost surely, 2^5497728 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 5497728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7425600).

5497728 is an abundant number, since it is smaller than the sum of its proper divisors (9353472).

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

5497728 is a wasteful number, since it uses less digits than its factorization.

5497728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 247 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 5497728 is about 2344.7234378493. The cubic root of 5497728 is about 176.4931075053.

The spelling of 5497728 in words is "five million, four hundred ninety-seven thousand, seven hundred twenty-eight".