12720968 has 36 divisors (see below), whose sum is σ = 26096715. Its totient is φ = 5810688.

The previous prime is 12720949. The next prime is 12720971. The reversal of 12720968 is 86902721.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 1444804 + 11276164 = 1202^2 + 3358^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2522.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 131096 + ... + 131192.

Almost surely, 2^12720968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12720968

12720968 is an abundant number, since it is smaller than the sum of its proper divisors (13375747).

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

12720968 is an equidigital number, since it uses as much as digits as its factorization.

12720968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 12720968 is about 3566.6466043049. The cubic root of 12720968 is about 233.4389852608.

The spelling of 12720968 in words is "twelve million, seven hundred twenty thousand, nine hundred sixty-eight".