28798285 has 16 divisors (see below), whose sum is σ = 35193600. Its totient is φ = 22619520.

The previous prime is 28798279. The next prime is 28798291. The reversal of 28798285 is 58289782.

It is an interprime number because it is at equal distance from previous prime (28798279) and next prime (28798291).

It is not a de Polignac number, because 28798285 - 2⁹ = 28797773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102345 + ... + 102625.

It is an arithmetic number, because the mean of its divisors is an integer number (2199600).

Almost surely, 2^28798285 is an apocalyptic number.

It is an amenable number.

28798285 is a deficient number, since it is larger than the sum of its proper divisors (6395315).

28798285 is a wasteful number, since it uses less digits than its factorization.

28798285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its digits is 645120, while the sum is 49.

The square root of 28798285 is about 5366.4033579298. The cubic root of 28798285 is about 306.5176884817.

The spelling of 28798285 in words is "twenty-eight million, seven hundred ninety-eight thousand, two hundred eighty-five".