28858512 has 20 divisors (see below), whose sum is σ = 74551280. Its totient is φ = 9619488.

The previous prime is 28858507. The next prime is 28858523. The reversal of 28858512 is 21585882.

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, 300562 + ... + 300657.

It is an arithmetic number, because the mean of its divisors is an integer number (3727564).

Almost surely, 2^28858512 is an apocalyptic number.

It is an amenable number.

28858512 is an abundant number, since it is smaller than the sum of its proper divisors (45692768).

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

28858512 is a wasteful number, since it uses less digits than its factorization.

28858512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601230 (or 601224 counting only the distinct ones).

The product of its digits is 51200, while the sum is 39.

The square root of 28858512 is about 5372.0119136130. The cubic root of 28858512 is about 306.7312172456.

The spelling of 28858512 in words is "twenty-eight million, eight hundred fifty-eight thousand, five hundred twelve".