1117715447 has 4 divisors (see below), whose sum is σ = 1153770816. Its totient is φ = 1081660080.

The previous prime is 1117715437. The next prime is 1117715503. The reversal of 1117715447 is 7445177111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7445177111 = 37 ⋅201221003.

It is a cyclic number.

It is not a de Polignac number, because 1117715447 - 2¹² = 1117711351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117715447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117715437) 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, 18027638 + ... + 18027699.

It is an arithmetic number, because the mean of its divisors is an integer number (288442704).

Almost surely, 2^1117715447 is an apocalyptic number.

1117715447 is a deficient number, since it is larger than the sum of its proper divisors (36055369).

1117715447 is an equidigital number, since it uses as much as digits as its factorization.

1117715447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36055368.

The product of its digits is 27440, while the sum is 38.

The square root of 1117715447 is about 33432.2515993165. The cubic root of 1117715447 is about 1037.7922368716.

The spelling of 1117715447 in words is "one billion, one hundred seventeen million, seven hundred fifteen thousand, four hundred forty-seven".