11917697 has 16 divisors (see below), whose sum is σ = 13924224. Its totient is φ = 10080000.

The previous prime is 11917681. The next prime is 11917709. The reversal of 11917697 is 79671911.

11917697 is nontrivially palindromic in base 14.

11917697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11917697 - 2⁴ = 11917681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11917627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18572 + ... + 19202.

It is an arithmetic number, because the mean of its divisors is an integer number (870264).

Almost surely, 2^11917697 is an apocalyptic number.

11917697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11917697 is a deficient number, since it is larger than the sum of its proper divisors (2006527).

11917697 is a wasteful number, since it uses less digits than its factorization.

11917697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

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

The square root of 11917697 is about 3452.2017611953. The cubic root of 11917697 is about 228.4182394497.

It can be divided in two parts, 1191 and 7697, that added together give a palindrome (8888).

The spelling of 11917697 in words is "eleven million, nine hundred seventeen thousand, six hundred ninety-seven".