3647062561 has 2 divisors, whose sum is σ = 3647062562. Its totient is φ = 3647062560.

The previous prime is 3647062543. The next prime is 3647062567. The reversal of 3647062561 is 1652607463.

3647062561 is digitally balanced in base 3, 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., 2606613025 + 1040449536 = 51055^2 + 32256^2 .

It is a cyclic number.

It is not a de Polignac number, because 3647062561 - 2²⁹ = 3110191649 is a prime.

It is not a weakly prime, because it can be changed into another prime (3647062567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1823531280 + 1823531281.

It is an arithmetic number, because the mean of its divisors is an integer number (1823531281).

Almost surely, 2^3647062561 is an apocalyptic number.

It is an amenable number.

3647062561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3647062561 is an equidigital number, since it uses as much as digits as its factorization.

3647062561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 3647062561 is about 60390.9145567444. The cubic root of 3647062561 is about 1539.2685795529.

The spelling of 3647062561 in words is "three billion, six hundred forty-seven million, sixty-two thousand, five hundred sixty-one".