36663728 has 20 divisors (see below), whose sum is σ = 71836920. Its totient is φ = 18125184.

The previous prime is 36663727. The next prime is 36663751. The reversal of 36663728 is 82736663.

36663728 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-3 number, since 3×36663728³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (36663727) 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, 11450 + ... + 14297.

It is an arithmetic number, because the mean of its divisors is an integer number (3591846).

Almost surely, 2^36663728 is an apocalyptic number.

It is an amenable number.

36663728 is a deficient number, since it is larger than the sum of its proper divisors (35173192).

36663728 is a wasteful number, since it uses less digits than its factorization.

36663728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25844 (or 25838 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 36663728 is about 6055.0580509191. The cubic root of 36663728 is about 332.2096222996.

The spelling of 36663728 in words is "thirty-six million, six hundred sixty-three thousand, seven hundred twenty-eight".