7989253393 has 8 divisors (see below), whose sum is σ = 8716593600. Its totient is φ = 7262087280.

The previous prime is 7989253369. The next prime is 7989253397. The reversal of 7989253393 is 3933529897.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7989253393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7989253397) 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, 63996 + ... + 141682.

It is an arithmetic number, because the mean of its divisors is an integer number (1089574200).

Almost surely, 2^7989253393 is an apocalyptic number.

It is an amenable number.

7989253393 is a deficient number, since it is larger than the sum of its proper divisors (727340207).

7989253393 is a wasteful number, since it uses less digits than its factorization.

7989253393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87047.

The product of its digits is 11022480, while the sum is 58.

The square root of 7989253393 is about 89382.6235517844. The cubic root of 7989253393 is about 1999.1040481117.

The spelling of 7989253393 in words is "seven billion, nine hundred eighty-nine million, two hundred fifty-three thousand, three hundred ninety-three".