3996393915 has 32 divisors (see below), whose sum is σ = 6781777920. Its totient is φ = 2002650624.

The previous prime is 3996393913. The next prime is 3996393971. The reversal of 3996393915 is 5193936993.

It is not a de Polignac number, because 3996393915 - 2¹ = 3996393913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3996393913) 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 31 ways as a sum of consecutive naturals, for example, 141876 + ... + 167694.

It is an arithmetic number, because the mean of its divisors is an integer number (211930560).

Almost surely, 2^3996393915 is an apocalyptic number.

3996393915 is a deficient number, since it is larger than the sum of its proper divisors (2785384005).

3996393915 is a wasteful number, since it uses less digits than its factorization.

3996393915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26451.

The product of its digits is 5314410, while the sum is 57.

The square root of 3996393915 is about 63217.0381701009. The cubic root of 3996393915 is about 1586.9238832867.

The spelling of 3996393915 in words is "three billion, nine hundred ninety-six million, three hundred ninety-three thousand, nine hundred fifteen".