5729728 has 14 divisors (see below), whose sum is σ = 11370056. Its totient is φ = 2864832.

The previous prime is 5729701. The next prime is 5729729. The reversal of 5729728 is 8279275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5729729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44700 + ... + 44827.

Almost surely, 2^5729728 is an apocalyptic number.

It is an amenable number.

5729728 is a deficient number, since it is larger than the sum of its proper divisors (5640328).

5729728 is an equidigital number, since it uses as much as digits as its factorization.

5729728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89539 (or 89529 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 5729728 is about 2393.6850252278. The cubic root of 5729728 is about 178.9416078277.

The spelling of 5729728 in words is "five million, seven hundred twenty-nine thousand, seven hundred twenty-eight".