8064608021 has 2 divisors, whose sum is σ = 8064608022. Its totient is φ = 8064608020.

The previous prime is 8064608003. The next prime is 8064608047. The reversal of 8064608021 is 1208064608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8003986225 + 60621796 = 89465^2 + 7786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8064608021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8064608051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4032304010 + 4032304011.

It is an arithmetic number, because the mean of its divisors is an integer number (4032304011).

Almost surely, 2^8064608021 is an apocalyptic number.

It is an amenable number.

8064608021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8064608021 is an equidigital number, since it uses as much as digits as its factorization.

8064608021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 8064608021 is about 89803.1626447532. The cubic root of 8064608021 is about 2005.3695726931.

The spelling of 8064608021 in words is "eight billion, sixty-four million, six hundred eight thousand, twenty-one".