3049784821 has 2 divisors, whose sum is σ = 3049784822. Its totient is φ = 3049784820.

The previous prime is 3049784747. The next prime is 3049784827. The reversal of 3049784821 is 1284879403.

3049784821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3048585796 + 1199025 = 55214^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 3049784821 - 2⁷ = 3049784693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3049784827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1524892410 + 1524892411.

It is an arithmetic number, because the mean of its divisors is an integer number (1524892411).

Almost surely, 2^3049784821 is an apocalyptic number.

It is an amenable number.

3049784821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3049784821 is an equidigital number, since it uses as much as digits as its factorization.

3049784821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 3049784821 is about 55224.8569124448. The cubic root of 3049784821 is about 1450.1838563536.

The spelling of 3049784821 in words is "three billion, forty-nine million, seven hundred eighty-four thousand, eight hundred twenty-one".