12969797 has 2 divisors, whose sum is σ = 12969798. Its totient is φ = 12969796.

The previous prime is 12969787. The next prime is 12969821. The reversal of 12969797 is 79796921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7214596 + 5755201 = 2686^2 + 2399^2 .

It is an emirp because it is prime and its reverse (79796921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12969797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12969767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6484898 + 6484899.

It is an arithmetic number, because the mean of its divisors is an integer number (6484899).

Almost surely, 2^12969797 is an apocalyptic number.

It is an amenable number.

12969797 is a deficient number, since it is larger than the sum of its proper divisors (1).

12969797 is an equidigital number, since it uses as much as digits as its factorization.

12969797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 50.

The square root of 12969797 is about 3601.3604373903. The cubic root of 12969797 is about 234.9512317693.

The spelling of 12969797 in words is "twelve million, nine hundred sixty-nine thousand, seven hundred ninety-seven".