8257247345 has 16 divisors (see below), whose sum is σ = 10004961792. Its totient is φ = 6541931520.

The previous prime is 8257247333. The next prime is 8257247347. The reversal of 8257247345 is 5437427528.

It is not a de Polignac number, because 8257247345 - 2¹⁰ = 8257246321 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 8257247345.

It is not an unprimeable number, because it can be changed into a prime (8257247347) 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 15 ways as a sum of consecutive naturals, for example, 196010 + ... + 234380.

It is an arithmetic number, because the mean of its divisors is an integer number (625310112).

Almost surely, 2^8257247345 is an apocalyptic number.

It is an amenable number.

8257247345 is a deficient number, since it is larger than the sum of its proper divisors (1747714447).

8257247345 is a wasteful number, since it uses less digits than its factorization.

8257247345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38792.

The product of its digits is 1881600, while the sum is 47.

The square root of 8257247345 is about 90869.3971862915. The cubic root of 8257247345 is about 2021.2115191716.

The spelling of 8257247345 in words is "eight billion, two hundred fifty-seven million, two hundred forty-seven thousand, three hundred forty-five".