13117716 has 36 divisors (see below), whose sum is σ = 33272512. Its totient is φ = 4357584.

The previous prime is 13117711. The next prime is 13117723. The reversal of 13117716 is 61771131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13117716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13117711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16275 + ... + 17061.

Almost surely, 2^13117716 is an apocalyptic number.

It is an amenable number.

13117716 is an abundant number, since it is smaller than the sum of its proper divisors (20154796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13117716 is a wasteful number, since it uses less digits than its factorization.

13117716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1255 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 13117716 is about 3621.8387595253. The cubic root of 13117716 is about 235.8410545182.

Adding to 13117716 its reverse (61771131), we get a palindrome (74888847).

The spelling of 13117716 in words is "thirteen million, one hundred seventeen thousand, seven hundred sixteen".