4473708221 has 4 divisors (see below), whose sum is σ = 4594619292. Its totient is φ = 4352797152.

The previous prime is 4473708181. The next prime is 4473708227. The reversal of 4473708221 is 1228073744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2958163321 + 1515544900 = 54389^2 + 38930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4473708221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4473708227) 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 in 3 ways as a sum of consecutive naturals, for example, 60455480 + ... + 60455553.

It is an arithmetic number, because the mean of its divisors is an integer number (1148654823).

Almost surely, 2^4473708221 is an apocalyptic number.

It is an amenable number.

4473708221 is a deficient number, since it is larger than the sum of its proper divisors (120911071).

4473708221 is a wasteful number, since it uses less digits than its factorization.

4473708221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120911070.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 4473708221 is about 66885.7848948489. The cubic root of 4473708221 is about 1647.7420257356.

The spelling of 4473708221 in words is "four billion, four hundred seventy-three million, seven hundred eight thousand, two hundred twenty-one".