28867008 has 56 divisors (see below), whose sum is σ = 76809600. Its totient is φ = 9568000.

The previous prime is 28866997. The next prime is 28867009. The reversal of 28867008 is 80076882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28867009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47893 + ... + 48491.

It is an arithmetic number, because the mean of its divisors is an integer number (1371600).

Almost surely, 2^28867008 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 28867008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38404800).

28867008 is an abundant number, since it is smaller than the sum of its proper divisors (47942592).

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

28867008 is a wasteful number, since it uses less digits than its factorization.

28867008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 28867008 is about 5372.8026206069. The cubic root of 28867008 is about 306.7613150405.

The spelling of 28867008 in words is "twenty-eight million, eight hundred sixty-seven thousand, eight".