3060639721 has 2 divisors, whose sum is σ = 3060639722. Its totient is φ = 3060639720.

The previous prime is 3060639679. The next prime is 3060639763. The reversal of 3060639721 is 1279360603.

It is a balanced prime because it is at equal distance from previous prime (3060639679) and next prime (3060639763).

It can be written as a sum of positive squares in only one way, i.e., 2999095696 + 61544025 = 54764^2 + 7845^2 .

It is a cyclic number.

It is not a de Polignac number, because 3060639721 - 2¹¹ = 3060637673 is a prime.

It is not a weakly prime, because it can be changed into another prime (3060639221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1530319860 + 1530319861.

It is an arithmetic number, because the mean of its divisors is an integer number (1530319861).

Almost surely, 2^3060639721 is an apocalyptic number.

It is an amenable number.

3060639721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3060639721 is an equidigital number, since it uses as much as digits as its factorization.

3060639721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 3060639721 is about 55323.0487319707. The cubic root of 3060639721 is about 1451.9023340484.

The spelling of 3060639721 in words is "three billion, sixty million, six hundred thirty-nine thousand, seven hundred twenty-one".