4000322789 has 2 divisors, whose sum is σ = 4000322790. Its totient is φ = 4000322788.

The previous prime is 4000322749. The next prime is 4000322813. The reversal of 4000322789 is 9872230004.

4000322789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2763604900 + 1236717889 = 52570^2 + 35167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000322789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000322749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000161394 + 2000161395.

It is an arithmetic number, because the mean of its divisors is an integer number (2000161395).

Almost surely, 2^4000322789 is an apocalyptic number.

It is an amenable number.

4000322789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000322789 is an equidigital number, since it uses as much as digits as its factorization.

4000322789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 4000322789 is about 63248.1050229965. The cubic root of 4000322789 is about 1587.4437504529.

The spelling of 4000322789 in words is "four billion, three hundred twenty-two thousand, seven hundred eighty-nine".