4431302989 has 2 divisors, whose sum is σ = 4431302990. Its totient is φ = 4431302988.

The previous prime is 4431302983. The next prime is 4431303047. The reversal of 4431302989 is 9892031344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4049413225 + 381889764 = 63635^2 + 19542^2 .

It is a cyclic number.

It is not a de Polignac number, because 4431302989 - 2⁷ = 4431302861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4431302983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2215651494 + 2215651495.

It is an arithmetic number, because the mean of its divisors is an integer number (2215651495).

Almost surely, 2^4431302989 is an apocalyptic number.

It is an amenable number.

4431302989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4431302989 is an equidigital number, since it uses as much as digits as its factorization.

4431302989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 4431302989 is about 66568.0327860152. The cubic root of 4431302989 is about 1642.5193022929.

The spelling of 4431302989 in words is "four billion, four hundred thirty-one million, three hundred two thousand, nine hundred eighty-nine".