8398288647 has 48 divisors (see below), whose sum is σ = 14332151808. Its totient is φ = 4637373120.

The previous prime is 8398288627. The next prime is 8398288663. The reversal of 8398288647 is 7468828938.

It is not a de Polignac number, because 8398288647 - 2⁷ = 8398288519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398288607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1506888 + ... + 1512450.

It is an arithmetic number, because the mean of its divisors is an integer number (298586496).

Almost surely, 2^8398288647 is an apocalyptic number.

8398288647 is a deficient number, since it is larger than the sum of its proper divisors (5933863161).

8398288647 is a wasteful number, since it uses less digits than its factorization.

8398288647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380 (or 6377 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The square root of 8398288647 is about 91642.1772275190. The cubic root of 8398288647 is about 2032.6546556065.

The spelling of 8398288647 in words is "eight billion, three hundred ninety-eight million, two hundred eighty-eight thousand, six hundred forty-seven".