8458847117 has 12 divisors (see below), whose sum is σ = 10025544636. Its totient is φ = 7113637440.

The previous prime is 8458847081. The next prime is 8458847141. The reversal of 8458847117 is 7117488548.

It can be written as a sum of positive squares in 2 ways, for example, as 7459085956 + 999761161 = 86366^2 + 31619^2 .

It is not a de Polignac number, because 8458847117 - 2⁶ = 8458847053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8458847197) 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 11 ways as a sum of consecutive naturals, for example, 1625984 + ... + 1631177.

It is an arithmetic number, because the mean of its divisors is an integer number (835462053).

Almost surely, 2^8458847117 is an apocalyptic number.

It is an amenable number.

8458847117 is a deficient number, since it is larger than the sum of its proper divisors (1566697519).

8458847117 is a wasteful number, since it uses less digits than its factorization.

8458847117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257228 (or 3257221 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 53.

The square root of 8458847117 is about 91971.9909374588. The cubic root of 8458847117 is about 2037.5286551580.

The spelling of 8458847117 in words is "eight billion, four hundred fifty-eight million, eight hundred forty-seven thousand, one hundred seventeen".