5291728 has 60 divisors (see below), whose sum is σ = 11799840. Its totient is φ = 2291328.

The previous prime is 5291723. The next prime is 5291753. The reversal of 5291728 is 8271925.

It is a junction number, because it is equal to n+sod(n) for n = 5291693 and 5291702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5291723) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 51325 + ... + 51427.

It is an arithmetic number, because the mean of its divisors is an integer number (196664).

Almost surely, 2^5291728 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 5291728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5899920).

5291728 is an abundant number, since it is smaller than the sum of its proper divisors (6508112).

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

5291728 is a wasteful number, since it uses less digits than its factorization.

5291728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 137 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 5291728 is about 2300.3756215018. The cubic root of 5291728 is about 174.2605863365.

It can be divided in two parts, 52 and 91728, that multiplied together give a square (4769856 = 2184²).

The spelling of 5291728 in words is "five million, two hundred ninety-one thousand, seven hundred twenty-eight".