3006247721 has 2 divisors, whose sum is σ = 3006247722. Its totient is φ = 3006247720.

The previous prime is 3006247703. The next prime is 3006247733. The reversal of 3006247721 is 1277426003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2822265625 + 183982096 = 53125^2 + 13564^2 .

It is a cyclic number.

It is not a de Polignac number, because 3006247721 - 2¹⁴ = 3006231337 is a prime.

It is not a weakly prime, because it can be changed into another prime (3006247771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1503123860 + 1503123861.

It is an arithmetic number, because the mean of its divisors is an integer number (1503123861).

Almost surely, 2^3006247721 is an apocalyptic number.

It is an amenable number.

3006247721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3006247721 is an equidigital number, since it uses as much as digits as its factorization.

3006247721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 3006247721 is about 54829.2597159582. The cubic root of 3006247721 is about 1443.2500730802.

The spelling of 3006247721 in words is "three billion, six million, two hundred forty-seven thousand, seven hundred twenty-one".