3993215 has 16 divisors (see below), whose sum is σ = 5132160. Its totient is φ = 2972160.

The previous prime is 3993193. The next prime is 3993217. The reversal of 3993215 is 5123993.

It is not a de Polignac number, because 3993215 - 2⁸ = 3992959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3993217) 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 15 ways as a sum of consecutive naturals, for example, 9050 + ... + 9480.

It is an arithmetic number, because the mean of its divisors is an integer number (320760).

Almost surely, 2^3993215 is an apocalyptic number.

3993215 is a deficient number, since it is larger than the sum of its proper divisors (1138945).

3993215 is a wasteful number, since it uses less digits than its factorization.

3993215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562.

The product of its digits is 7290, while the sum is 32.

The square root of 3993215 is about 1998.3030300733. The cubic root of 3993215 is about 158.6503000992.

The spelling of 3993215 in words is "three million, nine hundred ninety-three thousand, two hundred fifteen".