11937197 has 2 divisors, whose sum is σ = 11937198. Its totient is φ = 11937196.

The previous prime is 11937193. The next prime is 11937203. The reversal of 11937197 is 79173911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123561 + 4813636 = 2669^2 + 2194^2 .

It is a cyclic number.

It is not a de Polignac number, because 11937197 - 2² = 11937193 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 11937197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11937193) 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, 5968598 + 5968599.

It is an arithmetic number, because the mean of its divisors is an integer number (5968599).

Almost surely, 2^11937197 is an apocalyptic number.

It is an amenable number.

11937197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11937197 is an equidigital number, since it uses as much as digits as its factorization.

11937197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11907, while the sum is 38.

The square root of 11937197 is about 3455.0248913720. The cubic root of 11937197 is about 228.5427525595.

The spelling of 11937197 in words is "eleven million, nine hundred thirty-seven thousand, one hundred ninety-seven".