3968636933 has 2 divisors, whose sum is σ = 3968636934. Its totient is φ = 3968636932.

The previous prime is 3968636923. The next prime is 3968636993. The reversal of 3968636933 is 3396368693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2386029409 + 1582607524 = 48847^2 + 39782^2 .

It is a cyclic number.

It is not a de Polignac number, because 3968636933 - 2²⁶ = 3901528069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3968636923) 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, 1984318466 + 1984318467.

It is an arithmetic number, because the mean of its divisors is an integer number (1984318467).

Almost surely, 2^3968636933 is an apocalyptic number.

It is an amenable number.

3968636933 is a deficient number, since it is larger than the sum of its proper divisors (1).

3968636933 is an equidigital number, since it uses as much as digits as its factorization.

3968636933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11337408, while the sum is 56.

The square root of 3968636933 is about 62997.1184499736. The cubic root of 3968636933 is about 1583.2413473972.

The spelling of 3968636933 in words is "three billion, nine hundred sixty-eight million, six hundred thirty-six thousand, nine hundred thirty-three".