12536728 has 16 divisors (see below), whose sum is σ = 23829480. Its totient is φ = 6182208.

The previous prime is 12536723. The next prime is 12536753. The reversal of 12536728 is 82763521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12536693 and 12536702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10150 + ... + 11317.

Almost surely, 2^12536728 is an apocalyptic number.

It is an amenable number.

12536728 is a deficient number, since it is larger than the sum of its proper divisors (11292752).

12536728 is a wasteful number, since it uses less digits than its factorization.

12536728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21546 (or 21542 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 12536728 is about 3540.7242197042. The cubic root of 12536728 is about 232.3065211206.

The spelling of 12536728 in words is "twelve million, five hundred thirty-six thousand, seven hundred twenty-eight".