1117744447 has 4 divisors (see below), whose sum is σ = 1117848600. Its totient is φ = 1117640296.

The previous prime is 1117744423. The next prime is 1117744457. The reversal of 1117744447 is 7444477111.

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: 7444477111 = 6317 ⋅1178483.

It is a cyclic number.

It is not a de Polignac number, because 1117744447 - 2⁷ = 1117744319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117744417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33853 + ... + 58150.

It is an arithmetic number, because the mean of its divisors is an integer number (279462150).

Almost surely, 2^1117744447 is an apocalyptic number.

1117744447 is a deficient number, since it is larger than the sum of its proper divisors (104153).

1117744447 is an equidigital number, since it uses as much as digits as its factorization.

1117744447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104152.

The product of its digits is 87808, while the sum is 40.

The square root of 1117744447 is about 33432.6853094393. The cubic root of 1117744447 is about 1037.8012122372.

The spelling of 1117744447 in words is "one billion, one hundred seventeen million, seven hundred forty-four thousand, four hundred forty-seven".