4289659921 has 2 divisors, whose sum is σ = 4289659922. Its totient is φ = 4289659920.

The previous prime is 4289659901. The next prime is 4289659939. The reversal of 4289659921 is 1299569824.

4289659921 is digitally balanced in base 3, 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., 3399473025 + 890186896 = 58305^2 + 29836^2 .

It is a cyclic number.

It is not a de Polignac number, because 4289659921 - 2¹⁷ = 4289528849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4289659901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144829960 + 2144829961.

It is an arithmetic number, because the mean of its divisors is an integer number (2144829961).

Almost surely, 2^4289659921 is an apocalyptic number.

It is an amenable number.

4289659921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4289659921 is an equidigital number, since it uses as much as digits as its factorization.

4289659921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 55.

The square root of 4289659921 is about 65495.4954252581. The cubic root of 4289659921 is about 1624.8288477414.

The spelling of 4289659921 in words is "four billion, two hundred eighty-nine million, six hundred fifty-nine thousand, nine hundred twenty-one".