3966236971 has 4 divisors (see below), whose sum is σ = 3972256200. Its totient is φ = 3960217744.

The previous prime is 3966236951. The next prime is 3966236993. The reversal of 3966236971 is 1796326693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1796326693 = 7 ⋅256618099.

It is a cyclic number.

It is not a de Polignac number, because 3966236971 - 2¹⁹ = 3965712683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3966236951) 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, 3008626 + ... + 3009943.

It is an arithmetic number, because the mean of its divisors is an integer number (993064050).

Almost surely, 2^3966236971 is an apocalyptic number.

3966236971 is a deficient number, since it is larger than the sum of its proper divisors (6019229).

3966236971 is an equidigital number, since it uses as much as digits as its factorization.

3966236971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019228.

The product of its digits is 2204496, while the sum is 52.

The square root of 3966236971 is about 62978.0673806366. The cubic root of 3966236971 is about 1582.9221374409.

The spelling of 3966236971 in words is "three billion, nine hundred sixty-six million, two hundred thirty-six thousand, nine hundred seventy-one".