13536728 has 8 divisors (see below), whose sum is σ = 25381380. Its totient is φ = 6768360.

The previous prime is 13536703. The next prime is 13536737. The reversal of 13536728 is 82763531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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, 846038 + ... + 846053.

Almost surely, 2^13536728 is an apocalyptic number.

It is an amenable number.

13536728 is a deficient number, since it is larger than the sum of its proper divisors (11844652).

13536728 is a wasteful number, since it uses less digits than its factorization.

13536728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692097 (or 1692093 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 13536728 is about 3679.2292671156. The cubic root of 13536728 is about 238.3258958454.

It can be divided in two parts, 135 and 36728, that added together give a palindrome (36863).

The spelling of 13536728 in words is "thirteen million, five hundred thirty-six thousand, seven hundred twenty-eight".