3084700721 has 2 divisors, whose sum is σ = 3084700722. Its totient is φ = 3084700720.

The previous prime is 3084700709. The next prime is 3084700733. The reversal of 3084700721 is 1270074803.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (3084700709) and next prime (3084700733).

It can be written as a sum of positive squares in only one way, i.e., 1794454321 + 1290246400 = 42361^2 + 35920^2 .

It is a cyclic number.

It is not a de Polignac number, because 3084700721 - 2²² = 3080506417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3084700321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1542350360 + 1542350361.

It is an arithmetic number, because the mean of its divisors is an integer number (1542350361).

Almost surely, 2^3084700721 is an apocalyptic number.

It is an amenable number.

3084700721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3084700721 is an equidigital number, since it uses as much as digits as its factorization.

3084700721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 3084700721 is about 55540.0821119307. The cubic root of 3084700721 is about 1455.6970827146.

The spelling of 3084700721 in words is "three billion, eighty-four million, seven hundred thousand, seven hundred twenty-one".