3993913 has 8 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 3112080.

The previous prime is 3993911. The next prime is 3993943. The reversal of 3993913 is 3193993.

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 3993913 - 2¹ = 3993911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3993911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25858 + ... + 26011.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 2^3993913 is an apocalyptic number.

It is an amenable number.

3993913 is a deficient number, since it is larger than the sum of its proper divisors (985607).

3993913 is a wasteful number, since it uses less digits than its factorization.

3993913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51887.

The product of its digits is 19683, while the sum is 37.

The square root of 3993913 is about 1998.4776706283. The cubic root of 3993913 is about 158.6595433997.

The spelling of 3993913 in words is "three million, nine hundred ninety-three thousand, nine hundred thirteen".