4608220821 has 16 divisors (see below), whose sum is σ = 6788582784. Its totient is φ = 2765717504.

The previous prime is 4608220819. The next prime is 4608220829. The reversal of 4608220821 is 1280228064.

It is a happy number.

4608220821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4608220821 - 2¹ = 4608220819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4608220829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1963116 + ... + 1965461.

It is an arithmetic number, because the mean of its divisors is an integer number (424286424).

Almost surely, 2^4608220821 is an apocalyptic number.

It is an amenable number.

4608220821 is a deficient number, since it is larger than the sum of its proper divisors (2180361963).

4608220821 is a wasteful number, since it uses less digits than its factorization.

4608220821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928620.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 4608220821 is about 67883.8774746994. The cubic root of 4608220821 is about 1664.0936393937.

Adding to 4608220821 its reverse (1280228064), we get a palindrome (5888448885).

The spelling of 4608220821 in words is "four billion, six hundred eight million, two hundred twenty thousand, eight hundred twenty-one".