8085393993 has 4 divisors (see below), whose sum is σ = 10780525328. Its totient is φ = 5390262660.

The previous prime is 8085393983. The next prime is 8085394027. The reversal of 8085393993 is 3993935808.

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 8085393993 - 2²⁸ = 7816958537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8085393983) 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 3 ways as a sum of consecutive naturals, for example, 1347565663 + ... + 1347565668.

It is an arithmetic number, because the mean of its divisors is an integer number (2695131332).

Almost surely, 2^8085393993 is an apocalyptic number.

It is an amenable number.

8085393993 is a deficient number, since it is larger than the sum of its proper divisors (2695131335).

8085393993 is a wasteful number, since it uses less digits than its factorization.

8085393993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695131334.

The product of its (nonzero) digits is 6298560, while the sum is 57.

The square root of 8085393993 is about 89918.8189034976. The cubic root of 8085393993 is about 2007.0909952638.

The spelling of 8085393993 in words is "eight billion, eighty-five million, three hundred ninety-three thousand, nine hundred ninety-three".