28798056 has 48 divisors (see below), whose sum is σ = 89138400. Its totient is φ = 8227872.

The previous prime is 28798043. The next prime is 28798061. The reversal of 28798056 is 65089782.

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, 28066 + ... + 29073.

It is an arithmetic number, because the mean of its divisors is an integer number (1857050).

Almost surely, 2^28798056 is an apocalyptic number.

It is an amenable number.

28798056 is an abundant number, since it is smaller than the sum of its proper divisors (60340344).

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

28798056 is a wasteful number, since it uses less digits than its factorization.

28798056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57158 (or 57151 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28798056 is about 5366.3820214368. The cubic root of 28798056 is about 306.5168760173.

The spelling of 28798056 in words is "twenty-eight million, seven hundred ninety-eight thousand, fifty-six".