8905316729 has 2 divisors, whose sum is σ = 8905316730. Its totient is φ = 8905316728.

The previous prime is 8905316671. The next prime is 8905316779. The reversal of 8905316729 is 9276135098.

It is an a-pointer prime, because the next prime (8905316779) can be obtained adding 8905316729 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8897205625 + 8111104 = 94325^2 + 2848^2 .

It is a cyclic number.

It is not a de Polignac number, because 8905316729 - 2¹⁶ = 8905251193 is a prime.

It is not a weakly prime, because it can be changed into another prime (8905316779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4452658364 + 4452658365.

It is an arithmetic number, because the mean of its divisors is an integer number (4452658365).

Almost surely, 2^8905316729 is an apocalyptic number.

It is an amenable number.

8905316729 is a deficient number, since it is larger than the sum of its proper divisors (1).

8905316729 is an equidigital number, since it uses as much as digits as its factorization.

8905316729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 8905316729 is about 94367.9857207941. The cubic root of 8905316729 is about 2072.7636799277.

The spelling of 8905316729 in words is "eight billion, nine hundred five million, three hundred sixteen thousand, seven hundred twenty-nine".