8758726729 has 2 divisors, whose sum is σ = 8758726730. Its totient is φ = 8758726728.

The previous prime is 8758726699. The next prime is 8758726733. The reversal of 8758726729 is 9276278578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4883913225 + 3874813504 = 69885^2 + 62248^2 .

It is a cyclic number.

It is not a de Polignac number, because 8758726729 - 2¹³ = 8758718537 is a prime.

It is not a weakly prime, because it can be changed into another prime (8758726789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4379363364 + 4379363365.

It is an arithmetic number, because the mean of its divisors is an integer number (4379363365).

Almost surely, 2^8758726729 is an apocalyptic number.

It is an amenable number.

8758726729 is a deficient number, since it is larger than the sum of its proper divisors (1).

8758726729 is an equidigital number, since it uses as much as digits as its factorization.

8758726729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23708160, while the sum is 61.

The square root of 8758726729 is about 93588.0693731845. The cubic root of 8758726729 is about 2061.3274763805.

The spelling of 8758726729 in words is "eight billion, seven hundred fifty-eight million, seven hundred twenty-six thousand, seven hundred twenty-nine".