12789756 has 36 divisors (see below), whose sum is σ = 36948912. Its totient is φ = 3654144.

The previous prime is 12789737. The next prime is 12789757. The reversal of 12789756 is 65798721.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12789757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25125 + ... + 25628.

Almost surely, 2^12789756 is an apocalyptic number.

It is an amenable number.

12789756 is an abundant number, since it is smaller than the sum of its proper divisors (24159156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12789756 is a wasteful number, since it uses less digits than its factorization.

12789756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50770 (or 50765 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12789756 is about 3576.2768349220. The cubic root of 12789756 is about 233.8589989903.

The spelling of 12789756 in words is "twelve million, seven hundred eighty-nine thousand, seven hundred fifty-six".