7980393 has 4 divisors (see below), whose sum is σ = 10640528. Its totient is φ = 5320260.

The previous prime is 7980391. The next prime is 7980403. The reversal of 7980393 is 3930897.

It is a happy number.

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.

It is not a de Polignac number, because 7980393 - 2¹ = 7980391 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7980391) 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 3 ways as a sum of consecutive naturals, for example, 1330063 + ... + 1330068.

It is an arithmetic number, because the mean of its divisors is an integer number (2660132).

Almost surely, 2^7980393 is an apocalyptic number.

It is an amenable number.

7980393 is a deficient number, since it is larger than the sum of its proper divisors (2660135).

7980393 is a wasteful number, since it uses less digits than its factorization.

7980393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660134.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 7980393 is about 2824.9589377547. The cubic root of 7980393 is about 199.8364746671.

The spelling of 7980393 in words is "seven million, nine hundred eighty thousand, three hundred ninety-three".