11807009 has 2 divisors, whose sum is σ = 11807010. Its totient is φ = 11807008.

The previous prime is 11806997. The next prime is 11807017. The reversal of 11807009 is 90070811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 247009 = 3400^2 + 497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11807009 is a prime.

It is not a weakly prime, because it can be changed into another prime (11807039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5903504 + 5903505.

It is an arithmetic number, because the mean of its divisors is an integer number (5903505).

Almost surely, 2^11807009 is an apocalyptic number.

It is an amenable number.

11807009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11807009 is an equidigital number, since it uses as much as digits as its factorization.

11807009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 11807009 is about 3436.1328554059. The cubic root of 11807009 is about 227.7088787228.

The spelling of 11807009 in words is "eleven million, eight hundred seven thousand, nine".