3996996993 has 24 divisors (see below), whose sum is σ = 6350369376. Its totient is φ = 2422415160.

The previous prime is 3996996979. The next prime is 3996997003.

3996996993 is a `hidden beast` number, since 399 + 6 + 99 + 69 + 93 = 666.

3996996993 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3996996993 - 2⁴ = 3996996977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3996996953) 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 23 ways as a sum of consecutive naturals, for example, 154855 + ... + 178812.

It is an arithmetic number, because the mean of its divisors is an integer number (264598724).

Almost surely, 2^3996996993 is an apocalyptic number.

3996996993 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3996996993 is a deficient number, since it is larger than the sum of its proper divisors (2353372383).

3996996993 is a wasteful number, since it uses less digits than its factorization.

3996996993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333706 (or 333681 counting only the distinct ones).

The product of its digits is 172186884, while the sum is 72.

The square root of 3996996993 is about 63221.8078909485. The cubic root of 3996996993 is about 1587.0037044759.

The spelling of 3996996993 in words is "three billion, nine hundred ninety-six million, nine hundred ninety-six thousand, nine hundred ninety-three".