8478630847 has 12 divisors (see below), whose sum is σ = 9198358560. Its totient is φ = 7810090496.

The previous prime is 8478630841. The next prime is 8478630859. The reversal of 8478630847 is 7480368748.

It is a happy number.

It is not a de Polignac number, because 8478630847 - 2²³ = 8470242239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478630841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298522 + ... + 325687.

It is an arithmetic number, because the mean of its divisors is an integer number (766529880).

Almost surely, 2^8478630847 is an apocalyptic number.

8478630847 is a deficient number, since it is larger than the sum of its proper divisors (719727713).

8478630847 is a wasteful number, since it uses less digits than its factorization.

8478630847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624290 (or 624273 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 55.

The square root of 8478630847 is about 92079.4811399369. The cubic root of 8478630847 is about 2039.1158900415.

The spelling of 8478630847 in words is "eight billion, four hundred seventy-eight million, six hundred thirty thousand, eight hundred forty-seven".