8247645356 has 48 divisors (see below), whose sum is σ = 15549891840. Its totient is φ = 3818895360.

The previous prime is 8247645317. The next prime is 8247645383. The reversal of 8247645356 is 6535467428.

It is a happy number.

It is an unprimeable number.

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, 396200 + ... + 416496.

It is an arithmetic number, because the mean of its divisors is an integer number (323956080).

Almost surely, 2^8247645356 is an apocalyptic number.

It is an amenable number.

8247645356 is a deficient number, since it is larger than the sum of its proper divisors (7302246484).

8247645356 is a wasteful number, since it uses less digits than its factorization.

8247645356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20474 (or 20472 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 50.

The square root of 8247645356 is about 90816.5478093062. The cubic root of 8247645356 is about 2020.4277560282.

The spelling of 8247645356 in words is "eight billion, two hundred forty-seven million, six hundred forty-five thousand, three hundred fifty-six".