8728884 has 60 divisors (see below), whose sum is σ = 23631300. Its totient is φ = 2806272.

The previous prime is 8728883. The next prime is 8728897. The reversal of 8728884 is 4888278.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 6906384 = 1350^2 + 2628^2 .

It is a super-3 number, since 3×8728884³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8728883) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8932 + ... + 9860.

It is an arithmetic number, because the mean of its divisors is an integer number (393855).

Almost surely, 2^8728884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8728884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11815650).

8728884 is an abundant number, since it is smaller than the sum of its proper divisors (14902416).

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

8728884 is a wasteful number, since it uses less digits than its factorization.

8728884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 963 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The square root of 8728884 is about 2954.4684801162. The cubic root of 8728884 is about 205.8983694495.

Subtracting from 8728884 its reverse (4888278), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 8728884 in words is "eight million, seven hundred twenty-eight thousand, eight hundred eighty-four".