28680798 has 8 divisors (see below), whose sum is σ = 57361608. Its totient is φ = 9560264.

The previous prime is 28680781. The next prime is 28680811. The reversal of 28680798 is 89708682.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

28680798 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2390061 + ... + 2390072.

It is an arithmetic number, because the mean of its divisors is an integer number (7170201).

Almost surely, 2^28680798 is an apocalyptic number.

28680798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28680798 is a wasteful number, since it uses less digits than its factorization.

28680798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780138.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 28680798 is about 5355.4456397204. The cubic root of 28680798 is about 306.1002917871.

The spelling of 28680798 in words is "twenty-eight million, six hundred eighty thousand, seven hundred ninety-eight".