12791728 has 10 divisors (see below), whose sum is σ = 24784004. Its totient is φ = 6395856.

The previous prime is 12791687. The next prime is 12791773. The reversal of 12791728 is 82719721.

12791728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399726 + ... + 399757.

Almost surely, 2^12791728 is an apocalyptic number.

It is an amenable number.

12791728 is a deficient number, since it is larger than the sum of its proper divisors (11992276).

12791728 is an equidigital number, since it uses as much as digits as its factorization.

12791728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799491 (or 799485 counting only the distinct ones).

The product of its digits is 14112, while the sum is 37.

The square root of 12791728 is about 3576.5525300211. The cubic root of 12791728 is about 233.8710176258.

The spelling of 12791728 in words is "twelve million, seven hundred ninety-one thousand, seven hundred twenty-eight".