3968989876 has 24 divisors (see below), whose sum is σ = 7363916000. Its totient is φ = 1866517344.

The previous prime is 3968989867. The next prime is 3968989877. The reversal of 3968989876 is 6789898693.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3968989799 and 3968989808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968989877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177291 + ... + 198418.

Almost surely, 2^3968989876 is an apocalyptic number.

It is an amenable number.

3968989876 is a deficient number, since it is larger than the sum of its proper divisors (3394926124).

3968989876 is a wasteful number, since it uses less digits than its factorization.

3968989876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375871 (or 375869 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 73.

The square root of 3968989876 is about 62999.9196507424. The cubic root of 3968989876 is about 1583.2882801683.

The spelling of 3968989876 in words is "three billion, nine hundred sixty-eight million, nine hundred eighty-nine thousand, eight hundred seventy-six".