8260856647 has 2 divisors, whose sum is σ = 8260856648. Its totient is φ = 8260856646.

The previous prime is 8260856609. The next prime is 8260856693. The reversal of 8260856647 is 7466580628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8260856647 - 2⁷ = 8260856519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8260856594 and 8260856603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8260856447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4130428323 + 4130428324.

It is an arithmetic number, because the mean of its divisors is an integer number (4130428324).

Almost surely, 2^8260856647 is an apocalyptic number.

8260856647 is a deficient number, since it is larger than the sum of its proper divisors (1).

8260856647 is an equidigital number, since it uses as much as digits as its factorization.

8260856647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The square root of 8260856647 is about 90889.2548489644. The cubic root of 8260856647 is about 2021.5059716208.

The spelling of 8260856647 in words is "eight billion, two hundred sixty million, eight hundred fifty-six thousand, six hundred forty-seven".