3963329641 has 2 divisors, whose sum is σ = 3963329642. Its totient is φ = 3963329640.

The previous prime is 3963329627. The next prime is 3963329791. The reversal of 3963329641 is 1469233693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2919781225 + 1043548416 = 54035^2 + 32304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3963329641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3963329591 and 3963329600.

It is not a weakly prime, because it can be changed into another prime (3963329611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1981664820 + 1981664821.

It is an arithmetic number, because the mean of its divisors is an integer number (1981664821).

Almost surely, 2^3963329641 is an apocalyptic number.

It is an amenable number.

3963329641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3963329641 is an equidigital number, since it uses as much as digits as its factorization.

3963329641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 46.

The square root of 3963329641 is about 62954.9810658378. The cubic root of 3963329641 is about 1582.5352718401.

The spelling of 3963329641 in words is "three billion, nine hundred sixty-three million, three hundred twenty-nine thousand, six hundred forty-one".