11776889 has 2 divisors, whose sum is σ = 11776890. Its totient is φ = 11776888.

The previous prime is 11776879. The next prime is 11776907. The reversal of 11776889 is 98867711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11002489 + 774400 = 3317^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 11776889 - 2⁴ = 11776873 is a prime.

It is a super-2 number, since 2×11776889² = 277390229036642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11776819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5888444 + 5888445.

It is an arithmetic number, because the mean of its divisors is an integer number (5888445).

Almost surely, 2^11776889 is an apocalyptic number.

It is an amenable number.

11776889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11776889 is an equidigital number, since it uses as much as digits as its factorization.

11776889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 47.

The square root of 11776889 is about 3431.7472226258. The cubic root of 11776889 is about 227.5150833295.

The spelling of 11776889 in words is "eleven million, seven hundred seventy-six thousand, eight hundred eighty-nine".