28884798 has 12 divisors (see below), whose sum is σ = 62583768. Its totient is φ = 9628260.

The previous prime is 28884763. The next prime is 28884799. The reversal of 28884798 is 89748882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28884799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 802338 + ... + 802373.

It is an arithmetic number, because the mean of its divisors is an integer number (5215314).

Almost surely, 2^28884798 is an apocalyptic number.

28884798 is an abundant number, since it is smaller than the sum of its proper divisors (33698970).

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

28884798 is a wasteful number, since it uses less digits than its factorization.

28884798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604719 (or 1604716 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 54.

The square root of 28884798 is about 5374.4579261540. The cubic root of 28884798 is about 306.8243184886.

The spelling of 28884798 in words is "twenty-eight million, eight hundred eighty-four thousand, seven hundred ninety-eight".