7990393 has 8 divisors (see below), whose sum is σ = 8458400. Its totient is φ = 7527168.

The previous prime is 7990379. The next prime is 7990427. The reversal of 7990393 is 3930997.

It is a happy number.

7990393 is digitally balanced in base 3, 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 7990393 - 2¹³ = 7982201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7990363) 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, 2578 + ... + 4756.

It is an arithmetic number, because the mean of its divisors is an integer number (1057300).

Almost surely, 2^7990393 is an apocalyptic number.

It is an amenable number.

7990393 is a deficient number, since it is larger than the sum of its proper divisors (468007).

7990393 is a wasteful number, since it uses less digits than its factorization.

7990393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 7990393 is about 2826.7283208685. The cubic root of 7990393 is about 199.9199095986.

The spelling of 7990393 in words is "seven million, nine hundred ninety thousand, three hundred ninety-three".