11685761 has 2 divisors, whose sum is σ = 11685762. Its totient is φ = 11685760.

The previous prime is 11685757. The next prime is 11685769. The reversal of 11685761 is 16758611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8300161 + 3385600 = 2881^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 11685761 - 2² = 11685757 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11685769) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5842880 + 5842881.

It is an arithmetic number, because the mean of its divisors is an integer number (5842881).

Almost surely, 2^11685761 is an apocalyptic number.

It is an amenable number.

11685761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11685761 is an equidigital number, since it uses as much as digits as its factorization.

11685761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 35.

The square root of 11685761 is about 3418.4442367837. Note that the first 3 decimals coincide. The cubic root of 11685761 is about 226.9267360454.

The spelling of 11685761 in words is "eleven million, six hundred eighty-five thousand, seven hundred sixty-one".