3968888687 has 2 divisors, whose sum is σ = 3968888688. Its totient is φ = 3968888686.

The previous prime is 3968888659. The next prime is 3968888743. The reversal of 3968888687 is 7868888693.

3968888687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3968888687 - 2⁸ = 3968888431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3968888687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3968888617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984444343 + 1984444344.

It is an arithmetic number, because the mean of its divisors is an integer number (1984444344).

Almost surely, 2^3968888687 is an apocalyptic number.

3968888687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3968888687 is an equidigital number, since it uses as much as digits as its factorization.

3968888687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222953472, while the sum is 71.

The square root of 3968888687 is about 62999.1165572978. The cubic root of 3968888687 is about 1583.2748247952.

The spelling of 3968888687 in words is "three billion, nine hundred sixty-eight million, eight hundred eighty-eight thousand, six hundred eighty-seven".