8384211317 has 4 divisors (see below), whose sum is σ = 8877400236. Its totient is φ = 7891022400.

The previous prime is 8384211287. The next prime is 8384211427. The reversal of 8384211317 is 7131124838.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7499386801 + 884824516 = 86599^2 + 29746^2 .

It is a cyclic number.

It is not a de Polignac number, because 8384211317 - 2¹⁰ = 8384210293 is a prime.

It is a super-2 number, since 2×8384211317² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8384211617) 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, 246594434 + ... + 246594467.

It is an arithmetic number, because the mean of its divisors is an integer number (2219350059).

Almost surely, 2^8384211317 is an apocalyptic number.

It is an amenable number.

8384211317 is a deficient number, since it is larger than the sum of its proper divisors (493188919).

8384211317 is a wasteful number, since it uses less digits than its factorization.

8384211317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493188918.

The product of its digits is 32256, while the sum is 38.

The square root of 8384211317 is about 91565.3390590566. The cubic root of 8384211317 is about 2031.5182989669.

It can be divided in two parts, 83842 and 11317, that added together give a palindrome (95159).

The spelling of 8384211317 in words is "eight billion, three hundred eighty-four million, two hundred eleven thousand, three hundred seventeen".