8349617947 has 12 divisors (see below), whose sum is σ = 9180271800. Its totient is φ = 7588417760.

The previous prime is 8349617929. The next prime is 8349617951. The reversal of 8349617947 is 7497169438.

It is not a de Polignac number, because 8349617947 - 2¹⁹ = 8349093659 is a prime.

It is a super-2 number, since 2×8349617947² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8349617891 and 8349617900.

It is not an unprimeable number, because it can be changed into a prime (8349617957) 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, 555108 + ... + 569950.

It is an arithmetic number, because the mean of its divisors is an integer number (765022650).

Almost surely, 2^8349617947 is an apocalyptic number.

8349617947 is a deficient number, since it is larger than the sum of its proper divisors (830653853).

8349617947 is a wasteful number, since it uses less digits than its factorization.

8349617947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19514 (or 19503 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 58.

The square root of 8349617947 is about 91376.2438875663. The cubic root of 8349617947 is about 2028.7204233572.

The spelling of 8349617947 in words is "eight billion, three hundred forty-nine million, six hundred seventeen thousand, nine hundred forty-seven".