11117789 has 2 divisors, whose sum is σ = 11117790. Its totient is φ = 11117788.

The previous prime is 11117773. The next prime is 11117807. The reversal of 11117789 is 98771111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9504889 + 1612900 = 3083^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 11117789 - 2⁴ = 11117773 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11113789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5558894 + 5558895.

It is an arithmetic number, because the mean of its divisors is an integer number (5558895).

Almost surely, 2^11117789 is an apocalyptic number.

It is an amenable number.

11117789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11117789 is an equidigital number, since it uses as much as digits as its factorization.

11117789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 35.

The square root of 11117789 is about 3334.3348662065. The cubic root of 11117789 is about 223.1890117298.

The spelling of 11117789 in words is "eleven million, one hundred seventeen thousand, seven hundred eighty-nine".