12796991 has 2 divisors, whose sum is σ = 12796992. Its totient is φ = 12796990.

The previous prime is 12796981. The next prime is 12797063. The reversal of 12796991 is 19969721.

12796991 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12796991 - 2¹⁰ = 12795967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12796921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6398495 + 6398496.

It is an arithmetic number, because the mean of its divisors is an integer number (6398496).

Almost surely, 2^12796991 is an apocalyptic number.

12796991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12796991 is an equidigital number, since it uses as much as digits as its factorization.

12796991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 44.

The square root of 12796991 is about 3577.2882187489. The cubic root of 12796991 is about 233.9030876843.

The spelling of 12796991 in words is "twelve million, seven hundred ninety-six thousand, nine hundred ninety-one".