28726008 has 64 divisors (see below), whose sum is σ = 75060000. Its totient is φ = 9149952.

The previous prime is 28726007. The next prime is 28726067. The reversal of 28726008 is 80062782.

It is a self number, because there is not a number n which added to its sum of digits gives 28726008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28726001) 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, 103566 + ... + 103842.

Almost surely, 2^28726008 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 28726008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37530000).

28726008 is an abundant number, since it is smaller than the sum of its proper divisors (46333992).

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

28726008 is a wasteful number, since it uses less digits than its factorization.

28726008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28726008 is about 5359.6649148991. The cubic root of 28726008 is about 306.2610442775.

The spelling of 28726008 in words is "twenty-eight million, seven hundred twenty-six thousand, eight".