28816608 has 96 divisors (see below), whose sum is σ = 81672192. Its totient is φ = 8870400.

The previous prime is 28816591. The next prime is 28816609. The reversal of 28816608 is 80661882.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28816609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68238 + ... + 68658.

It is an arithmetic number, because the mean of its divisors is an integer number (850752).

Almost surely, 2^28816608 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 28816608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40836096).

28816608 is an abundant number, since it is smaller than the sum of its proper divisors (52855584).

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

28816608 is a wasteful number, since it uses less digits than its factorization.

28816608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 28816608 is about 5368.1102820266. The cubic root of 28816608 is about 306.5826823160.

The spelling of 28816608 in words is "twenty-eight million, eight hundred sixteen thousand, six hundred eight".