11864197 has 2 divisors, whose sum is σ = 11864198. Its totient is φ = 11864196.

The previous prime is 11864183. The next prime is 11864207. The reversal of 11864197 is 79146811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 23716 = 3441^2 + 154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11864197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11864107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932098 + 5932099.

It is an arithmetic number, because the mean of its divisors is an integer number (5932099).

Almost surely, 2^11864197 is an apocalyptic number.

It is an amenable number.

11864197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11864197 is an equidigital number, since it uses as much as digits as its factorization.

11864197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 37.

The square root of 11864197 is about 3444.4443673835. Note that the first 3 decimals coincide. The cubic root of 11864197 is about 228.0759275694.

The spelling of 11864197 in words is "eleven million, eight hundred sixty-four thousand, one hundred ninety-seven".