3963843712 has 64 divisors (see below), whose sum is σ = 8067843000. Its totient is φ = 1939185664.

The previous prime is 3963843691. The next prime is 3963843733. The reversal of 3963843712 is 2173483693.

It is an interprime number because it is at equal distance from previous prime (3963843691) and next prime (3963843733).

It can be written as a sum of positive squares in 4 ways, for example, as 3654927936 + 308915776 = 60456^2 + 17576^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3778164 + ... + 3779212.

Almost surely, 2^3963843712 is an apocalyptic number.

3963843712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3963843712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4033921500).

3963843712 is an abundant number, since it is smaller than the sum of its proper divisors (4103999288).

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

3963843712 is a wasteful number, since it uses less digits than its factorization.

3963843712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1661 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 3963843712 is about 62959.0637795703. The cubic root of 3963843712 is about 1582.6036907700.

The spelling of 3963843712 in words is "three billion, nine hundred sixty-three million, eight hundred forty-three thousand, seven hundred twelve".