63728012 has 6 divisors (see below), whose sum is σ = 111524028. Its totient is φ = 31864004.

The previous prime is 63728011. The next prime is 63728029. The reversal of 63728012 is 21082736.

It is a happy number.

63728012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63728012² = 8122519026944288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63728011) 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 as a sum of consecutive naturals, namely, 7965998 + ... + 7966005.

It is an arithmetic number, because the mean of its divisors is an integer number (18587338).

Almost surely, 2^63728012 is an apocalyptic number.

It is an amenable number.

63728012 is a deficient number, since it is larger than the sum of its proper divisors (47796016).

63728012 is a wasteful number, since it uses less digits than its factorization.

63728012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15932007 (or 15932005 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 63728012 is about 7982.9826506137. The cubic root of 63728012 is about 399.4325537258.

The spelling of 63728012 in words is "sixty-three million, seven hundred twenty-eight thousand, twelve".