3968928966 has 16 divisors (see below), whose sum is σ = 7969485888. Its totient is φ = 1317705000.

The previous prime is 3968928961. The next prime is 3968928989. The reversal of 3968928966 is 6698298693.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3968928897 and 3968928906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968928961) 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, 1316200 + ... + 1319211.

It is an arithmetic number, because the mean of its divisors is an integer number (498092868).

Almost surely, 2^3968928966 is an apocalyptic number.

3968928966 is an abundant number, since it is smaller than the sum of its proper divisors (4000556922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3968928966 is a wasteful number, since it uses less digits than its factorization.

3968928966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635667.

The product of its digits is 60466176, while the sum is 66.

The square root of 3968928966 is about 62999.4362355728. The cubic root of 3968928966 is about 1583.2801808294.

The spelling of 3968928966 in words is "three billion, nine hundred sixty-eight million, nine hundred twenty-eight thousand, nine hundred sixty-six".