12719728 has 30 divisors (see below), whose sum is σ = 28248936. Its totient is φ = 5435136.

The previous prime is 12719671. The next prime is 12719741. The reversal of 12719728 is 82791721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37576 + ... + 37912.

Almost surely, 2^12719728 is an apocalyptic number.

It is an amenable number.

12719728 is an abundant number, since it is smaller than the sum of its proper divisors (15529208).

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

12719728 is an frugal number, since it uses more digits than its factorization.

12719728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 346 counting only the distinct ones).

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

The square root of 12719728 is about 3566.4727673151. The cubic root of 12719728 is about 233.4314000480.

The spelling of 12719728 in words is "twelve million, seven hundred nineteen thousand, seven hundred twenty-eight".