11775761 has 2 divisors, whose sum is σ = 11775762. Its totient is φ = 11775760.

The previous prime is 11775739. The next prime is 11775767. The reversal of 11775761 is 16757711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6225025 + 5550736 = 2495^2 + 2356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11775761 is a prime.

It is not a weakly prime, because it can be changed into another prime (11775767) 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, 5887880 + 5887881.

It is an arithmetic number, because the mean of its divisors is an integer number (5887881).

Almost surely, 2^11775761 is an apocalyptic number.

It is an amenable number.

11775761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11775761 is an equidigital number, since it uses as much as digits as its factorization.

11775761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10290, while the sum is 35.

The square root of 11775761 is about 3431.5828709212. The cubic root of 11775761 is about 227.5078192377.

The spelling of 11775761 in words is "eleven million, seven hundred seventy-five thousand, seven hundred sixty-one".