4479032821 has 2 divisors, whose sum is σ = 4479032822. Its totient is φ = 4479032820.

The previous prime is 4479032813. The next prime is 4479032843. The reversal of 4479032821 is 1282309744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4354152196 + 124880625 = 65986^2 + 11175^2 .

It is a cyclic number.

It is not a de Polignac number, because 4479032821 - 2³ = 4479032813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4479032801) 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, 2239516410 + 2239516411.

It is an arithmetic number, because the mean of its divisors is an integer number (2239516411).

Almost surely, 2^4479032821 is an apocalyptic number.

It is an amenable number.

4479032821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4479032821 is an equidigital number, since it uses as much as digits as its factorization.

4479032821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 4479032821 is about 66925.5767326663. The cubic root of 4479032821 is about 1648.3954798200.

The spelling of 4479032821 in words is "four billion, four hundred seventy-nine million, thirty-two thousand, eight hundred twenty-one".