728702012 has 12 divisors (see below), whose sum is σ = 1278411456. Its totient is φ = 363441600.

The previous prime is 728702011. The next prime is 728702017. The reversal of 728702012 is 210207827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728702011) 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, 225548 + ... + 228755.

It is an arithmetic number, because the mean of its divisors is an integer number (106534288).

Almost surely, 2^728702012 is an apocalyptic number.

It is an amenable number.

728702012 is a deficient number, since it is larger than the sum of its proper divisors (549709444).

728702012 is a wasteful number, since it uses less digits than its factorization.

728702012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454708 (or 454706 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 728702012 is about 26994.4811396700. The cubic root of 728702012 is about 899.8773544809.

Adding to 728702012 its reverse (210207827), we get a palindrome (938909839).

The spelling of 728702012 in words is "seven hundred twenty-eight million, seven hundred two thousand, twelve".