3996973611 has 12 divisors (see below), whose sum is σ = 5778045000. Its totient is φ = 2662508160.

The previous prime is 3996973609. The next prime is 3996973663. The reversal of 3996973611 is 1163796993.

It is not a de Polignac number, because 3996973611 - 2¹ = 3996973609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3996973681) 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, 166545 + ... + 189026.

It is an arithmetic number, because the mean of its divisors is an integer number (481503750).

Almost surely, 2^3996973611 is an apocalyptic number.

3996973611 is a deficient number, since it is larger than the sum of its proper divisors (1781071389).

3996973611 is a wasteful number, since it uses less digits than its factorization.

3996973611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356826 (or 356823 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 54.

The square root of 3996973611 is about 63221.6229703098. The cubic root of 3996973611 is about 1587.0006098699. Note that the first 3 decimals are identical.

The spelling of 3996973611 in words is "three billion, nine hundred ninety-six million, nine hundred seventy-three thousand, six hundred eleven".