8520247163 has 4 divisors (see below), whose sum is σ = 8659923408. Its totient is φ = 8380570920.

The previous prime is 8520247147. The next prime is 8520247217. The reversal of 8520247163 is 3617420258.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8520247163 - 2⁴ = 8520247147 is a prime.

It is a super-2 number, since 2×8520247163² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8520247133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69838031 + ... + 69838152.

It is an arithmetic number, because the mean of its divisors is an integer number (2164980852).

Almost surely, 2^8520247163 is an apocalyptic number.

8520247163 is a deficient number, since it is larger than the sum of its proper divisors (139676245).

8520247163 is a wasteful number, since it uses less digits than its factorization.

8520247163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139676244.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 8520247163 is about 92305.1849193749. The cubic root of 8520247163 is about 2042.4466961475.

The spelling of 8520247163 in words is "eight billion, five hundred twenty million, two hundred forty-seven thousand, one hundred sixty-three".