11741809 has 2 divisors, whose sum is σ = 11741810. Its totient is φ = 11741808.

The previous prime is 11741803. The next prime is 11741819. The reversal of 11741809 is 90814711.

11741809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7997584 + 3744225 = 2828^2 + 1935^2 .

It is a cyclic number.

It is not a de Polignac number, because 11741809 - 2³ = 11741801 is a prime.

It is not a weakly prime, because it can be changed into another prime (11741801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5870904 + 5870905.

It is an arithmetic number, because the mean of its divisors is an integer number (5870905).

Almost surely, 2^11741809 is an apocalyptic number.

It is an amenable number.

11741809 is a deficient number, since it is larger than the sum of its proper divisors (1).

11741809 is an equidigital number, since it uses as much as digits as its factorization.

11741809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 11741809 is about 3426.6323117603. The cubic root of 11741809 is about 227.2889577694.

The spelling of 11741809 in words is "eleven million, seven hundred forty-one thousand, eight hundred nine".