28810008 has 48 divisors (see below), whose sum is σ = 78764400. Its totient is φ = 9512640.

The previous prime is 28809997. The next prime is 28810049. The reversal of 28810008 is 80001882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6013 + ... + 9683.

It is an arithmetic number, because the mean of its divisors is an integer number (1640925).

Almost surely, 2^28810008 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 28810008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39382200).

28810008 is an abundant number, since it is smaller than the sum of its proper divisors (49954392).

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

28810008 is a wasteful number, since it uses less digits than its factorization.

28810008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792 (or 3785 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 28810008 is about 5367.4955053544. The cubic root of 28810008 is about 306.5592745158.

It can be divided in two parts, 288 and 10008, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 28810008 in words is "twenty-eight million, eight hundred ten thousand, eight".