8345864747 has 4 divisors (see below), whose sum is σ = 9104579736. Its totient is φ = 7587149760.

The previous prime is 8345864719. The next prime is 8345864753. The reversal of 8345864747 is 7474685438.

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 8345864747 - 2⁸ = 8345864491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8345864692 and 8345864701.

It is not an unprimeable number, because it can be changed into a prime (8345864767) 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, 379357478 + ... + 379357499.

It is an arithmetic number, because the mean of its divisors is an integer number (2276144934).

Almost surely, 2^8345864747 is an apocalyptic number.

8345864747 is a deficient number, since it is larger than the sum of its proper divisors (758714989).

8345864747 is a wasteful number, since it uses less digits than its factorization.

8345864747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758714988.

The product of its digits is 18063360, while the sum is 56.

The square root of 8345864747 is about 91355.7045126357. The cubic root of 8345864747 is about 2028.4164040715.

The spelling of 8345864747 in words is "eight billion, three hundred forty-five million, eight hundred sixty-four thousand, seven hundred forty-seven".