3920393 has 4 divisors (see below), whose sum is σ = 3925008. Its totient is φ = 3915780.

The previous prime is 3920383. The next prime is 3920401. The reversal of 3920393 is 3930293.

It is a happy number.

3920393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3920393 - 2⁴ = 3920377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3920303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (981252).

Almost surely, 2^3920393 is an apocalyptic number.

It is an amenable number.

3920393 is a deficient number, since it is larger than the sum of its proper divisors (4615).

3920393 is a wasteful number, since it uses less digits than its factorization.

3920393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614.

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 3920393 is about 1979.9982323224. The cubic root of 3920393 is about 157.6799723172.

The spelling of 3920393 in words is "three million, nine hundred twenty thousand, three hundred ninety-three".