12796621 has 2 divisors, whose sum is σ = 12796622. Its totient is φ = 12796620.

The previous prime is 12796613. The next prime is 12796639. The reversal of 12796621 is 12669721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9954025 + 2842596 = 3155^2 + 1686^2 .

It is a cyclic number.

It is not a de Polignac number, because 12796621 - 2³ = 12796613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12796601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6398310 + 6398311.

It is an arithmetic number, because the mean of its divisors is an integer number (6398311).

Almost surely, 2^12796621 is an apocalyptic number.

It is an amenable number.

12796621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12796621 is an equidigital number, since it uses as much as digits as its factorization.

12796621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 12796621 is about 3577.2365032242. The cubic root of 12796621 is about 233.9008333790.

The spelling of 12796621 in words is "twelve million, seven hundred ninety-six thousand, six hundred twenty-one".