4473208021 has 2 divisors, whose sum is σ = 4473208022. Its totient is φ = 4473208020.

The previous prime is 4473207971. The next prime is 4473208043. The reversal of 4473208021 is 1208023744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2928324996 + 1544883025 = 54114^2 + 39305^2 .

It is a cyclic number.

It is not a de Polignac number, because 4473208021 - 2¹⁵ = 4473175253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4473218021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2236604010 + 2236604011.

It is an arithmetic number, because the mean of its divisors is an integer number (2236604011).

Almost surely, 2^4473208021 is an apocalyptic number.

It is an amenable number.

4473208021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4473208021 is an equidigital number, since it uses as much as digits as its factorization.

4473208021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 4473208021 is about 66882.0455802602. The cubic root of 4473208021 is about 1647.6806127541.

The spelling of 4473208021 in words is "four billion, four hundred seventy-three million, two hundred eight thousand, twenty-one".