3936975971 has 4 divisors (see below), whose sum is σ = 3944994744. Its totient is φ = 3928957200.

The previous prime is 3936975953. The next prime is 3936975979. The reversal of 3936975971 is 1795796393.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3936975971 - 2⁶ = 3936975907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3936975971.

It is not an unprimeable number, because it can be changed into a prime (3936975979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4008650 + ... + 4009631.

It is an arithmetic number, because the mean of its divisors is an integer number (986248686).

Almost surely, 2^3936975971 is an apocalyptic number.

3936975971 is a deficient number, since it is larger than the sum of its proper divisors (8018773).

3936975971 is an equidigital number, since it uses as much as digits as its factorization.

3936975971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018772.

The product of its digits is 9644670, while the sum is 59.

The square root of 3936975971 is about 62745.3262880989. The cubic root of 3936975971 is about 1579.0198443358.

The spelling of 3936975971 in words is "three billion, nine hundred thirty-six million, nine hundred seventy-five thousand, nine hundred seventy-one".