727848728 has 32 divisors (see below), whose sum is σ = 1446228000. Its totient is φ = 342800640.

The previous prime is 727848697. The next prime is 727848787. The reversal of 727848728 is 827848727.

It is a self number, because there is not a number n which added to its sum of digits gives 727848728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28748 + ... + 47771.

It is an arithmetic number, because the mean of its divisors is an integer number (45194625).

Almost surely, 2^727848728 is an apocalyptic number.

It is an amenable number.

727848728 is a deficient number, since it is larger than the sum of its proper divisors (718379272).

727848728 is a wasteful number, since it uses less digits than its factorization.

727848728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76595 (or 76591 counting only the distinct ones).

The product of its digits is 2809856, while the sum is 53.

The square root of 727848728 is about 26978.6717241602. The cubic root of 727848728 is about 899.5259758928.

Subtracting 727848728 from its reverse (827848727), we obtain a palindrome (99999999).

The spelling of 727848728 in words is "seven hundred twenty-seven million, eight hundred forty-eight thousand, seven hundred twenty-eight".