3663960673 has 2 divisors, whose sum is σ = 3663960674. Its totient is φ = 3663960672.

The previous prime is 3663960647. The next prime is 3663960689. The reversal of 3663960673 is 3760693663.

It is a happy number.

3663960673 is digitally balanced in base 2, 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., 3522659904 + 141300769 = 59352^2 + 11887^2 .

It is a cyclic number.

It is not a de Polignac number, because 3663960673 - 2¹⁷ = 3663829601 is a prime.

It is a super-2 number, since 2×3663960673² = 26849215626581225858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3663960073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1831980336 + 1831980337.

It is an arithmetic number, because the mean of its divisors is an integer number (1831980337).

Almost surely, 2^3663960673 is an apocalyptic number.

It is an amenable number.

3663960673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3663960673 is an equidigital number, since it uses as much as digits as its factorization.

3663960673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 49.

The square root of 3663960673 is about 60530.6589506508. The cubic root of 3663960673 is about 1541.6422399298.

The spelling of 3663960673 in words is "three billion, six hundred sixty-three million, nine hundred sixty thousand, six hundred seventy-three".