8249323993 has 12 divisors (see below), whose sum is σ = 8710867008. Its totient is φ = 7811095320.

The previous prime is 8249323991. The next prime is 8249324023. The reversal of 8249323993 is 3993239428.

It is not a de Polignac number, because 8249323993 - 2¹ = 8249323991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8249323993.

It is not an unprimeable number, because it can be changed into a prime (8249323991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 869988 + ... + 879418.

It is an arithmetic number, because the mean of its divisors is an integer number (725905584).

Almost surely, 2^8249323993 is an apocalyptic number.

It is an amenable number.

8249323993 is a deficient number, since it is larger than the sum of its proper divisors (461543015).

8249323993 is a wasteful number, since it uses less digits than its factorization.

8249323993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11892 (or 11873 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 52.

The square root of 8249323993 is about 90825.7892506308. The cubic root of 8249323993 is about 2020.5648187724.

The spelling of 8249323993 in words is "eight billion, two hundred forty-nine million, three hundred twenty-three thousand, nine hundred ninety-three".