8726320769 has 2 divisors, whose sum is σ = 8726320770. Its totient is φ = 8726320768.

The previous prime is 8726320697. The next prime is 8726320831. The reversal of 8726320769 is 9670236278.

Together with previous prime (8726320697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8712355600 + 13965169 = 93340^2 + 3737^2 .

It is a cyclic number.

It is not a de Polignac number, because 8726320769 - 2¹² = 8726316673 is a prime.

It is a super-2 number, since 2×8726320769² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8726320069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4363160384 + 4363160385.

It is an arithmetic number, because the mean of its divisors is an integer number (4363160385).

Almost surely, 2^8726320769 is an apocalyptic number.

It is an amenable number.

8726320769 is a deficient number, since it is larger than the sum of its proper divisors (1).

8726320769 is an equidigital number, since it uses as much as digits as its factorization.

8726320769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 8726320769 is about 93414.7781081773. The cubic root of 8726320769 is about 2058.7821350316.

The spelling of 8726320769 in words is "eight billion, seven hundred twenty-six million, three hundred twenty thousand, seven hundred sixty-nine".