11885597 has 2 divisors, whose sum is σ = 11885598. Its totient is φ = 11885596.

The previous prime is 11885569. The next prime is 11885611. The reversal of 11885597 is 79558811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10106041 + 1779556 = 3179^2 + 1334^2 .

It is a cyclic number.

It is not a de Polignac number, because 11885597 - 2¹⁰ = 11884573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11885527) 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, 5942798 + 5942799.

It is an arithmetic number, because the mean of its divisors is an integer number (5942799).

Almost surely, 2^11885597 is an apocalyptic number.

It is an amenable number.

11885597 is a deficient number, since it is larger than the sum of its proper divisors (1).

11885597 is an equidigital number, since it uses as much as digits as its factorization.

11885597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 44.

The square root of 11885597 is about 3447.5494195153. The cubic root of 11885597 is about 228.2129755634.

The spelling of 11885597 in words is "eleven million, eight hundred eighty-five thousand, five hundred ninety-seven".