12720716 has 12 divisors (see below), whose sum is σ = 22294440. Its totient is φ = 6350880.

The previous prime is 12720713. The next prime is 12720737. The reversal of 12720716 is 61702721.

It is not an unprimeable number, because it can be changed into a prime (12720713) 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, 1271 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (1857870).

Almost surely, 2^12720716 is an apocalyptic number.

It is an amenable number.

12720716 is a deficient number, since it is larger than the sum of its proper divisors (9573724).

12720716 is a wasteful number, since it uses less digits than its factorization.

12720716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744 (or 4742 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 12720716 is about 3566.6112768285. The cubic root of 12720716 is about 233.4374437897.

The spelling of 12720716 in words is "twelve million, seven hundred twenty thousand, seven hundred sixteen".