8068729 has 2 divisors, whose sum is σ = 8068730. Its totient is φ = 8068728.

The previous prime is 8068717. The next prime is 8068769. The reversal of 8068729 is 9278608.

It is an a-pointer prime, because the next prime (8068769) can be obtained adding 8068729 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7868025 + 200704 = 2805^2 + 448^2 .

It is a cyclic number.

It is not a de Polignac number, because 8068729 - 2¹⁵ = 8035961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8068691 and 8068700.

It is not a weakly prime, because it can be changed into another prime (8068769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034364 + 4034365.

It is an arithmetic number, because the mean of its divisors is an integer number (4034365).

Almost surely, 2^8068729 is an apocalyptic number.

It is an amenable number.

8068729 is a deficient number, since it is larger than the sum of its proper divisors (1).

8068729 is an equidigital number, since it uses as much as digits as its factorization.

8068729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 8068729 is about 2840.5508268644. The cubic root of 8068729 is about 200.5711092853.

The spelling of 8068729 in words is "eight million, sixty-eight thousand, seven hundred twenty-nine".