728518852 has 12 divisors (see below), whose sum is σ = 1295808556. Its totient is φ = 358287840.

The previous prime is 728518807. The next prime is 728518853. The reversal of 728518852 is 258815827.

It can be written as a sum of positive squares in 2 ways, for example, as 369946756 + 358572096 = 19234^2 + 18936^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (728518853) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1492623 + ... + 1493110.

Almost surely, 2^728518852 is an apocalyptic number.

It is an amenable number.

728518852 is a deficient number, since it is larger than the sum of its proper divisors (567289704).

728518852 is a wasteful number, since it uses less digits than its factorization.

728518852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985798 (or 2985796 counting only the distinct ones).

The product of its digits is 358400, while the sum is 46.

The square root of 728518852 is about 26991.0883811676. The cubic root of 728518852 is about 899.8019531304.

The spelling of 728518852 in words is "seven hundred twenty-eight million, five hundred eighteen thousand, eight hundred fifty-two".