11886557 has 2 divisors, whose sum is σ = 11886558. Its totient is φ = 11886556.

The previous prime is 11886529. The next prime is 11886593. The reversal of 11886557 is 75568811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11383876 + 502681 = 3374^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 11886557 - 2⁶ = 11886493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11886527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5943278 + 5943279.

It is an arithmetic number, because the mean of its divisors is an integer number (5943279).

Almost surely, 2^11886557 is an apocalyptic number.

It is an amenable number.

11886557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11886557 is an equidigital number, since it uses as much as digits as its factorization.

11886557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 41.

The square root of 11886557 is about 3447.6886460352. The cubic root of 11886557 is about 228.2191196541.

The spelling of 11886557 in words is "eleven million, eight hundred eighty-six thousand, five hundred fifty-seven".