3967143975 has 18 divisors (see below), whose sum is σ = 7105596056. Its totient is φ = 2115810000.

The previous prime is 3967143941. The next prime is 3967143979. The reversal of 3967143975 is 5793417693.

It is a happy number.

It is not a de Polignac number, because 3967143975 - 2¹² = 3967139879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3967143979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8815651 + ... + 8816100.

Almost surely, 2^3967143975 is an apocalyptic number.

3967143975 is a deficient number, since it is larger than the sum of its proper divisors (3138452081).

3967143975 is a wasteful number, since it uses less digits than its factorization.

3967143975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17631767 (or 17631759 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 3967143975 is about 62985.2679203637. The cubic root of 3967143975 is about 1583.0427897784.

It can be divided in two parts, 396714 and 3975, that added together give a square (400689 = 633²).

The spelling of 3967143975 in words is "three billion, nine hundred sixty-seven million, one hundred forty-three thousand, nine hundred seventy-five".