728655714 has 12 divisors (see below), whose sum is σ = 1578754086. Its totient is φ = 242885232.

The previous prime is 728655701. The next prime is 728655721. The reversal of 728655714 is 417556827.

728655714 is a `hidden beast` number, since 7 + 2 + 86 + 557 + 14 = 666.

It can be written as a sum of positive squares in only one way, i.e., 565250625 + 163405089 = 23775^2 + 12783^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 728655714.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20240419 + ... + 20240454.

Almost surely, 2^728655714 is an apocalyptic number.

728655714 is an abundant number, since it is smaller than the sum of its proper divisors (850098372).

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

728655714 is a wasteful number, since it uses less digits than its factorization.

728655714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40480881 (or 40480878 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 728655714 is about 26993.6235803939. The cubic root of 728655714 is about 899.8582962086.

The spelling of 728655714 in words is "seven hundred twenty-eight million, six hundred fifty-five thousand, seven hundred fourteen".