8722150729 has 2 divisors, whose sum is σ = 8722150730. Its totient is φ = 8722150728.

The previous prime is 8722150691. The next prime is 8722150739. The reversal of 8722150729 is 9270512278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8054703504 + 667447225 = 89748^2 + 25835^2 .

It is a cyclic number.

It is not a de Polignac number, because 8722150729 - 2⁷ = 8722150601 is a prime.

It is not a weakly prime, because it can be changed into another prime (8722150739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4361075364 + 4361075365.

It is an arithmetic number, because the mean of its divisors is an integer number (4361075365).

Almost surely, 2^8722150729 is an apocalyptic number.

It is an amenable number.

8722150729 is a deficient number, since it is larger than the sum of its proper divisors (1).

8722150729 is an equidigital number, since it uses as much as digits as its factorization.

8722150729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 8722150729 is about 93392.4554179833. The cubic root of 8722150729 is about 2058.4541399166.

The spelling of 8722150729 in words is "eight billion, seven hundred twenty-two million, one hundred fifty thousand, seven hundred twenty-nine".