11697917 has 18 divisors (see below), whose sum is σ = 14964894. Its totient is φ = 9110640.

The previous prime is 11697859. The next prime is 11697919. The reversal of 11697917 is 71979611.

11697917 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8561476 + 3136441 = 2926^2 + 1771^2 .

It is not a de Polignac number, because 11697917 - 2²⁰ = 10649341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11697919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4943 + ... + 6915.

It is an arithmetic number, because the mean of its divisors is an integer number (831383).

Almost surely, 2^11697917 is an apocalyptic number.

It is an amenable number.

11697917 is a deficient number, since it is larger than the sum of its proper divisors (3266977).

11697917 is a wasteful number, since it uses less digits than its factorization.

11697917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009 (or 1991 counting only the distinct ones).

The product of its digits is 23814, while the sum is 41.

The square root of 11697917 is about 3420.2217764350. The cubic root of 11697917 is about 227.0053948921.

The spelling of 11697917 in words is "eleven million, six hundred ninety-seven thousand, nine hundred seventeen".