11117867 has 4 divisors (see below), whose sum is σ = 11126856. Its totient is φ = 11108880.

The previous prime is 11117857. The next prime is 11117893. The reversal of 11117867 is 76871111.

11117867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 76871111 = 137 ⋅561103.

It is a cyclic number.

It is not a de Polignac number, because 11117867 - 2⁸ = 11117611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11117807) 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, 2273 + ... + 5234.

It is an arithmetic number, because the mean of its divisors is an integer number (2781714).

Almost surely, 2^11117867 is an apocalyptic number.

11117867 is a deficient number, since it is larger than the sum of its proper divisors (8989).

11117867 is an equidigital number, since it uses as much as digits as its factorization.

11117867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988.

The product of its digits is 2352, while the sum is 32.

The square root of 11117867 is about 3334.3465626716. The cubic root of 11117867 is about 223.1895336772.

Adding to 11117867 its reverse (76871111), we get a palindrome (87988978).

The spelling of 11117867 in words is "eleven million, one hundred seventeen thousand, eight hundred sixty-seven".