3996666993 has 8 divisors (see below), whose sum is σ = 5813333856. Its totient is φ = 2422222400.

The previous prime is 3996666979. The next prime is 3996666997.

3996666993 is nontrivially palindromic in base 10.

3996666993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3996666993 - 2¹² = 3996662897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3996666997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60555528 + ... + 60555593.

It is an arithmetic number, because the mean of its divisors is an integer number (726666732).

Almost surely, 2^3996666993 is an apocalyptic number.

3996666993 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3996666993 is a deficient number, since it is larger than the sum of its proper divisors (1816666863).

3996666993 is a wasteful number, since it uses less digits than its factorization.

3996666993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121111135.

The product of its digits is 76527504, while the sum is 66.

The square root of 3996666993 is about 63219.1979781458. The cubic root of 3996666993 is about 1586.9600278826.

The spelling of 3996666993 in words is "three billion, nine hundred ninety-six million, six hundred sixty-six thousand, nine hundred ninety-three".