28008996 has 96 divisors (see below), whose sum is σ = 73801728. Its totient is φ = 8225280.

The previous prime is 28008949. The next prime is 28008997. The reversal of 28008996 is 69980082.

It is not an unprimeable number, because it can be changed into a prime (28008997) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 271881 + ... + 271983.

It is an arithmetic number, because the mean of its divisors is an integer number (768768).

Almost surely, 2^28008996 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 28008996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36900864).

28008996 is an abundant number, since it is smaller than the sum of its proper divisors (45792732).

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

28008996 is a wasteful number, since it uses less digits than its factorization.

28008996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 28008996 is about 5292.3525959633. The cubic root of 28008996 is about 303.6914141273.

The spelling of 28008996 in words is "twenty-eight million, eight thousand, nine hundred ninety-six".