3993393 has 8 divisors (see below), whose sum is σ = 5379808. Its totient is φ = 2634624.

The previous prime is 3993377. The next prime is 3993397. The reversal of 3993393 is 3933993.

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

It is not a de Polignac number, because 3993393 - 2⁴ = 3993377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3993397) 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, 6571 + ... + 7152.

It is an arithmetic number, because the mean of its divisors is an integer number (672476).

Almost surely, 2^3993393 is an apocalyptic number.

It is an amenable number.

3993393 is a deficient number, since it is larger than the sum of its proper divisors (1386415).

3993393 is a wasteful number, since it uses less digits than its factorization.

3993393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13823.

The product of its digits is 59049, while the sum is 39.

The square root of 3993393 is about 1998.3475673666. The cubic root of 3993393 is about 158.6526573756.

The spelling of 3993393 in words is "three million, nine hundred ninety-three thousand, three hundred ninety-three".