3943971612 has 36 divisors (see below), whose sum is σ = 11393696496. Its totient is φ = 1126848960.

The previous prime is 3943971611. The next prime is 3943971617. The reversal of 3943971612 is 2161793493.

3943971612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943971611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7825089 + ... + 7825592.

Almost surely, 2^3943971612 is an apocalyptic number.

It is an amenable number.

3943971612 is an abundant number, since it is smaller than the sum of its proper divisors (7449724884).

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

3943971612 is a wasteful number, since it uses less digits than its factorization.

3943971612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15650698 (or 15650693 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3943971612 is about 62801.0478575000. The cubic root of 3943971612 is about 1579.9545481771.

The spelling of 3943971612 in words is "three billion, nine hundred forty-three million, nine hundred seventy-one thousand, six hundred twelve".