3663960647 has 2 divisors, whose sum is σ = 3663960648. Its totient is φ = 3663960646.

The previous prime is 3663960577. The next prime is 3663960673. The reversal of 3663960647 is 7460693663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3663960647 - 2¹² = 3663956551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3663960595 and 3663960604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3663962647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1831980323 + 1831980324.

It is an arithmetic number, because the mean of its divisors is an integer number (1831980324).

Almost surely, 2^3663960647 is an apocalyptic number.

3663960647 is a deficient number, since it is larger than the sum of its proper divisors (1).

3663960647 is an equidigital number, since it uses as much as digits as its factorization.

3663960647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 50.

The square root of 3663960647 is about 60530.6587358836. The cubic root of 3663960647 is about 1541.6422362833.

The spelling of 3663960647 in words is "three billion, six hundred sixty-three million, nine hundred sixty thousand, six hundred forty-seven".