8784000728 has 16 divisors (see below), whose sum is σ = 16471055760. Its totient is φ = 4391719200.

The previous prime is 8784000707. The next prime is 8784000749. The reversal of 8784000728 is 8270004878.

It is a happy number.

It is a Cunningham number, because it is equal to 93723²-1.

It is an interprime number because it is at equal distance from previous prime (8784000707) and next prime (8784000749).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164018 + ... + 210878.

It is an arithmetic number, because the mean of its divisors is an integer number (1029440985).

Almost surely, 2^8784000728 is an apocalyptic number.

It is an amenable number.

8784000728 is a deficient number, since it is larger than the sum of its proper divisors (7687055032).

8784000728 is a wasteful number, since it uses less digits than its factorization.

8784000728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70298 (or 70294 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 8784000728 is about 93722.9999946651. Note that the first 5 decimals coincide. The cubic root of 8784000728 is about 2063.3082801894.

The spelling of 8784000728 in words is "eight billion, seven hundred eighty-four million, seven hundred twenty-eight", and thus it is an aban number.