11117247 has 4 divisors (see below), whose sum is σ = 14823000. Its totient is φ = 7411496.

The previous prime is 11117213. The next prime is 11117321. The reversal of 11117247 is 74271111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74271111 = 3 ⋅24757037.

It is a cyclic number.

It is not a de Polignac number, because 11117247 - 2⁸ = 11116991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11117647) 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, 1852872 + ... + 1852877.

It is an arithmetic number, because the mean of its divisors is an integer number (3705750).

Almost surely, 2^11117247 is an apocalyptic number.

11117247 is a deficient number, since it is larger than the sum of its proper divisors (3705753).

11117247 is an equidigital number, since it uses as much as digits as its factorization.

11117247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705752.

The product of its digits is 392, while the sum is 24.

The square root of 11117247 is about 3334.2535896359. The cubic root of 11117247 is about 223.1853847973.

Adding to 11117247 its reverse (74271111), we get a palindrome (85388358).

The spelling of 11117247 in words is "eleven million, one hundred seventeen thousand, two hundred forty-seven".