4423679989 has 2 divisors, whose sum is σ = 4423679990. Its totient is φ = 4423679988.

The previous prime is 4423679977. The next prime is 4423680013. The reversal of 4423679989 is 9899763244.

4423679989 is digitally balanced in base 3, 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., 3651784900 + 771895089 = 60430^2 + 27783^2 .

It is a cyclic number.

It is not a de Polignac number, because 4423679989 - 2²³ = 4415291381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4423679969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2211839994 + 2211839995.

It is an arithmetic number, because the mean of its divisors is an integer number (2211839995).

Almost surely, 2^4423679989 is an apocalyptic number.

It is an amenable number.

4423679989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4423679989 is an equidigital number, since it uses as much as digits as its factorization.

4423679989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 61.

The square root of 4423679989 is about 66510.7509279515. The cubic root of 4423679989 is about 1641.5769074490.

The spelling of 4423679989 in words is "four billion, four hundred twenty-three million, six hundred seventy-nine thousand, nine hundred eighty-nine".