3539030821 has 2 divisors, whose sum is σ = 3539030822. Its totient is φ = 3539030820.

The previous prime is 3539030813. The next prime is 3539030837. The reversal of 3539030821 is 1280309353.

3539030821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1777549921 + 1761480900 = 42161^2 + 41970^2 .

It is an emirp because it is prime and its reverse (1280309353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3539030821 - 2³ = 3539030813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3539030881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1769515410 + 1769515411.

It is an arithmetic number, because the mean of its divisors is an integer number (1769515411).

Almost surely, 2^3539030821 is an apocalyptic number.

It is an amenable number.

3539030821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3539030821 is an equidigital number, since it uses as much as digits as its factorization.

3539030821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3539030821 is about 59489.7539161157. The cubic root of 3539030821 is about 1523.9174717872.

The spelling of 3539030821 in words is "three billion, five hundred thirty-nine million, thirty thousand, eight hundred twenty-one".