8871647328 has 36 divisors (see below), whose sum is σ = 25228747908. Its totient is φ = 2957215680.

The previous prime is 8871647269. The next prime is 8871647341. The reversal of 8871647328 is 8237461788.

It is a happy number.

8871647328 is a `hidden beast` number, since 88 + 71 + 6 + 473 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8871647328² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15401878 + ... + 15402453.

It is an arithmetic number, because the mean of its divisors is an integer number (700798553).

Almost surely, 2^8871647328 is an apocalyptic number.

It is an amenable number.

8871647328 is an abundant number, since it is smaller than the sum of its proper divisors (16357100580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8871647328 is a wasteful number, since it uses less digits than its factorization.

8871647328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30804347 (or 30804336 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 8871647328 is about 94189.4225908621. The cubic root of 8871647328 is about 2070.1481319463.

The spelling of 8871647328 in words is "eight billion, eight hundred seventy-one million, six hundred forty-seven thousand, three hundred twenty-eight".