13773197 has 2 divisors, whose sum is σ = 13773198. Its totient is φ = 13773196.

The previous prime is 13773187. The next prime is 13773203. The reversal of 13773197 is 79137731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9554281 + 4218916 = 3091^2 + 2054^2 .

It is an emirp because it is prime and its reverse (79137731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13773197 - 2¹⁸ = 13511053 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13773197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13773107) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6886598 + 6886599.

It is an arithmetic number, because the mean of its divisors is an integer number (6886599).

Almost surely, 2^13773197 is an apocalyptic number.

It is an amenable number.

13773197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13773197 is an equidigital number, since it uses as much as digits as its factorization.

13773197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27783, while the sum is 38.

The square root of 13773197 is about 3711.2258082741. The cubic root of 13773197 is about 239.7056402731.

The spelling of 13773197 in words is "thirteen million, seven hundred seventy-three thousand, one hundred ninety-seven".