13117793 has 4 divisors (see below), whose sum is σ = 14126868. Its totient is φ = 12108720.

The previous prime is 13117787. The next prime is 13117801. The reversal of 13117793 is 39771131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7246864 + 5870929 = 2692^2 + 2423^2 .

It is not a de Polignac number, because 13117793 - 2¹² = 13113697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13117723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504518 + ... + 504543.

It is an arithmetic number, because the mean of its divisors is an integer number (3531717).

Almost surely, 2^13117793 is an apocalyptic number.

13117793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13117793 is a deficient number, since it is larger than the sum of its proper divisors (1009075).

13117793 is a wasteful number, since it uses less digits than its factorization.

13117793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009074.

The product of its digits is 3969, while the sum is 32.

The square root of 13117793 is about 3621.8493894694. The cubic root of 13117793 is about 235.8415159737.

The spelling of 13117793 in words is "thirteen million, one hundred seventeen thousand, seven hundred ninety-three".