11777009 has 2 divisors, whose sum is σ = 11777010. Its totient is φ = 11777008.

The previous prime is 11776997. The next prime is 11777011. The reversal of 11777009 is 90077711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9168784 + 2608225 = 3028^2 + 1615^2 .

It is an emirp because it is prime and its reverse (90077711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11777009 - 2⁸ = 11776753 is a prime.

Together with 11777011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11777069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5888504 + 5888505.

It is an arithmetic number, because the mean of its divisors is an integer number (5888505).

Almost surely, 2^11777009 is an apocalyptic number.

It is an amenable number.

11777009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11777009 is an equidigital number, since it uses as much as digits as its factorization.

11777009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3087, while the sum is 32.

The square root of 11777009 is about 3431.7647063865. The cubic root of 11777009 is about 227.5158560780.

The spelling of 11777009 in words is "eleven million, seven hundred seventy-seven thousand, nine".