11117872 has 10 divisors (see below), whose sum is σ = 21540908. Its totient is φ = 5558928.

The previous prime is 11117857. The next prime is 11117893. The reversal of 11117872 is 27871111.

It is a self number, because there is not a number n which added to its sum of digits gives 11117872.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347418 + ... + 347449.

Almost surely, 2^11117872 is an apocalyptic number.

It is an amenable number.

11117872 is a deficient number, since it is larger than the sum of its proper divisors (10423036).

11117872 is an equidigital number, since it uses as much as digits as its factorization.

11117872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694875 (or 694869 counting only the distinct ones).

The product of its digits is 784, while the sum is 28.

The square root of 11117872 is about 3334.3473124436. The cubic root of 11117872 is about 223.1895671352.

Adding to 11117872 its reverse (27871111), we get a palindrome (38988983).

The spelling of 11117872 in words is "eleven million, one hundred seventeen thousand, eight hundred seventy-two".