8490193393 has 8 divisors (see below), whose sum is σ = 9263212416. Its totient is φ = 7717371600.

The previous prime is 8490193379. The next prime is 8490193423. The reversal of 8490193393 is 3933910948.

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-8490193393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8490193993) 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 7 ways as a sum of consecutive naturals, for example, 49288 + ... + 139318.

It is an arithmetic number, because the mean of its divisors is an integer number (1157901552).

Almost surely, 2^8490193393 is an apocalyptic number.

It is an amenable number.

8490193393 is a deficient number, since it is larger than the sum of its proper divisors (773019023).

8490193393 is a wasteful number, since it uses less digits than its factorization.

8490193393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98615.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 8490193393 is about 92142.2454306384. The cubic root of 8490193393 is about 2040.0424021207.

The spelling of 8490193393 in words is "eight billion, four hundred ninety million, one hundred ninety-three thousand, three hundred ninety-three".