8249247073 has 4 divisors (see below), whose sum is σ = 8389064880. Its totient is φ = 8109429268.

The previous prime is 8249247067. The next prime is 8249247173. The reversal of 8249247073 is 3707429428.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8249247073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8249247053) 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, 69908815 + ... + 69908932.

It is an arithmetic number, because the mean of its divisors is an integer number (2097266220).

Almost surely, 2^8249247073 is an apocalyptic number.

It is an amenable number.

8249247073 is a deficient number, since it is larger than the sum of its proper divisors (139817807).

8249247073 is a wasteful number, since it uses less digits than its factorization.

8249247073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139817806.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 8249247073 is about 90825.3658016305. The cubic root of 8249247073 is about 2020.5585385678.

The spelling of 8249247073 in words is "eight billion, two hundred forty-nine million, two hundred forty-seven thousand, seventy-three".