727684772 has 12 divisors (see below), whose sum is σ = 1307866140. Its totient is φ = 354008736.

The previous prime is 727684759. The next prime is 727684777. The reversal of 727684772 is 277486727.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 628204096 + 99480676 = 25064^2 + 9974^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 727684772.

It is not an unprimeable number, because it can be changed into a prime (727684777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2458247 + ... + 2458542.

It is an arithmetic number, because the mean of its divisors is an integer number (108988845).

Almost surely, 2^727684772 is an apocalyptic number.

It is an amenable number.

727684772 is a deficient number, since it is larger than the sum of its proper divisors (580181368).

727684772 is a wasteful number, since it uses less digits than its factorization.

727684772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916830 (or 4916828 counting only the distinct ones).

The product of its digits is 1843968, while the sum is 50.

The square root of 727684772 is about 26975.6329304801. The cubic root of 727684772 is about 899.4584280858.

The spelling of 727684772 in words is "seven hundred twenty-seven million, six hundred eighty-four thousand, seven hundred seventy-two".