3968855764 has 24 divisors (see below), whose sum is σ = 7137567360. Its totient is φ = 1929616416.

The previous prime is 3968855713. The next prime is 3968855797. The reversal of 3968855764 is 4675588693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266097 + ... + 280615.

It is an arithmetic number, because the mean of its divisors is an integer number (297398640).

Almost surely, 2^3968855764 is an apocalyptic number.

It is an amenable number.

3968855764 is a deficient number, since it is larger than the sum of its proper divisors (3168711596).

3968855764 is a wasteful number, since it uses less digits than its factorization.

3968855764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16407 (or 16405 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 61.

The square root of 3968855764 is about 62998.8552594410. The cubic root of 3968855764 is about 1583.2704468861.

The spelling of 3968855764 in words is "three billion, nine hundred sixty-eight million, eight hundred fifty-five thousand, seven hundred sixty-four".