4823538821 has 2 divisors, whose sum is σ = 4823538822. Its totient is φ = 4823538820.

The previous prime is 4823538779. The next prime is 4823538829. The reversal of 4823538821 is 1288353284.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4608916321 + 214622500 = 67889^2 + 14650^2 .

It is a cyclic number.

It is not a de Polignac number, because 4823538821 - 2⁶ = 4823538757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4823538829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2411769410 + 2411769411.

It is an arithmetic number, because the mean of its divisors is an integer number (2411769411).

Almost surely, 2^4823538821 is an apocalyptic number.

It is an amenable number.

4823538821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4823538821 is an equidigital number, since it uses as much as digits as its factorization.

4823538821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 44.

The square root of 4823538821 is about 69451.7013542505. The cubic root of 4823538821 is about 1689.6182535862.

The spelling of 4823538821 in words is "four billion, eight hundred twenty-three million, five hundred thirty-eight thousand, eight hundred twenty-one".