8104807729 has 2 divisors, whose sum is σ = 8104807730. Its totient is φ = 8104807728.

The previous prime is 8104807591. The next prime is 8104807807. The reversal of 8104807729 is 9277084018.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5365855504 + 2738952225 = 73252^2 + 52335^2 .

It is a cyclic number.

It is not a de Polignac number, because 8104807729 - 2¹⁵ = 8104774961 is a prime.

It is not a weakly prime, because it can be changed into another prime (8104808729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4052403864 + 4052403865.

It is an arithmetic number, because the mean of its divisors is an integer number (4052403865).

Almost surely, 2^8104807729 is an apocalyptic number.

It is an amenable number.

8104807729 is a deficient number, since it is larger than the sum of its proper divisors (1).

8104807729 is an equidigital number, since it uses as much as digits as its factorization.

8104807729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 8104807729 is about 90026.7056433812. The cubic root of 8104807729 is about 2008.6961114379.

The spelling of 8104807729 in words is "eight billion, one hundred four million, eight hundred seven thousand, seven hundred twenty-nine".