8992728 has 128 divisors (see below), whose sum is σ = 27648000. Its totient is φ = 2695680.

The previous prime is 8992723. The next prime is 8992729. The reversal of 8992728 is 8272998.

8992728 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8992723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113793 + ... + 113871.

It is an arithmetic number, because the mean of its divisors is an integer number (216000).

Almost surely, 2^8992728 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 8992728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13824000).

8992728 is an abundant number, since it is smaller than the sum of its proper divisors (18655272).

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

8992728 is a wasteful number, since it uses less digits than its factorization.

8992728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 132 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 8992728 is about 2998.7877550770. The cubic root of 8992728 is about 207.9523436184.

The spelling of 8992728 in words is "eight million, nine hundred ninety-two thousand, seven hundred twenty-eight".