11427761 has 2 divisors, whose sum is σ = 11427762. Its totient is φ = 11427760.

The previous prime is 11427749. The next prime is 11427763. The reversal of 11427761 is 16772411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9120400 + 2307361 = 3020^2 + 1519^2 .

It is a cyclic number.

It is not a de Polignac number, because 11427761 - 2⁶ = 11427697 is a prime.

It is a Sophie Germain prime.

Together with 11427763, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11427763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5713880 + 5713881.

It is an arithmetic number, because the mean of its divisors is an integer number (5713881).

Almost surely, 2^11427761 is an apocalyptic number.

It is an amenable number.

11427761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11427761 is an equidigital number, since it uses as much as digits as its factorization.

11427761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 29.

The square root of 11427761 is about 3380.4971527869. The cubic root of 11427761 is about 225.2442516260.

The spelling of 11427761 in words is "eleven million, four hundred twenty-seven thousand, seven hundred sixty-one".