11771117 has 2 divisors, whose sum is σ = 11771118. Its totient is φ = 11771116.

The previous prime is 11771113. The next prime is 11771119. The reversal of 11771117 is 71117711.

11771117 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8491396 + 3279721 = 2914^2 + 1811^2 .

It is a cyclic number.

It is not a de Polignac number, because 11771117 - 2² = 11771113 is a prime.

Together with 11771119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11771113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5885558 + 5885559.

It is an arithmetic number, because the mean of its divisors is an integer number (5885559).

Almost surely, 2^11771117 is an apocalyptic number.

It is an amenable number.

11771117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11771117 is an equidigital number, since it uses as much as digits as its factorization.

11771117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 343, while the sum is 26.

The square root of 11771117 is about 3430.9061485269. The cubic root of 11771117 is about 227.4779079300.

Adding to 11771117 its reverse (71117711), we get a palindrome (82888828).

The spelling of 11771117 in words is "eleven million, seven hundred seventy-one thousand, one hundred seventeen".