7689360647 has 2 divisors, whose sum is σ = 7689360648. Its totient is φ = 7689360646.

The previous prime is 7689360631. The next prime is 7689360733. The reversal of 7689360647 is 7460639867.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7460639867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7689360647 - 2⁴ = 7689360631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7689360592 and 7689360601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7689360247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3844680323 + 3844680324.

It is an arithmetic number, because the mean of its divisors is an integer number (3844680324).

Almost surely, 2^7689360647 is an apocalyptic number.

7689360647 is a deficient number, since it is larger than the sum of its proper divisors (1).

7689360647 is an equidigital number, since it uses as much as digits as its factorization.

7689360647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The square root of 7689360647 is about 87688.9995780543. Note that the first 3 decimals coincide. The cubic root of 7689360647 is about 1973.7709083509.

The spelling of 7689360647 in words is "seven billion, six hundred eighty-nine million, three hundred sixty thousand, six hundred forty-seven".