3922805729 has 2 divisors, whose sum is σ = 3922805730. Its totient is φ = 3922805728.

The previous prime is 3922805699. The next prime is 3922805771. The reversal of 3922805729 is 9275082293.

3922805729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3678665104 + 244140625 = 60652^2 + 15625^2 .

It is a cyclic number.

It is not a de Polignac number, because 3922805729 - 2⁸ = 3922805473 is a prime.

It is not a weakly prime, because it can be changed into another prime (3922805129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1961402864 + 1961402865.

It is an arithmetic number, because the mean of its divisors is an integer number (1961402865).

Almost surely, 2^3922805729 is an apocalyptic number.

It is an amenable number.

3922805729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3922805729 is an equidigital number, since it uses as much as digits as its factorization.

3922805729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 3922805729 is about 62632.3057934162. The cubic root of 3922805729 is about 1577.1231269938.

The spelling of 3922805729 in words is "three billion, nine hundred twenty-two million, eight hundred five thousand, seven hundred twenty-nine".