28956798 has 96 divisors (see below), whose sum is σ = 73785600. Its totient is φ = 8390304.

The previous prime is 28956757. The next prime is 28956827. The reversal of 28956798 is 89765982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173311 + ... + 173477.

It is an arithmetic number, because the mean of its divisors is an integer number (768600).

Almost surely, 2^28956798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28956798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36892800).

28956798 is an abundant number, since it is smaller than the sum of its proper divisors (44828802).

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

28956798 is a wasteful number, since it uses less digits than its factorization.

28956798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 204 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 28956798 is about 5381.1521071235. The cubic root of 28956798 is about 307.0790432622.

The spelling of 28956798 in words is "twenty-eight million, nine hundred fifty-six thousand, seven hundred ninety-eight".