28956828 has 24 divisors (see below), whose sum is σ = 68265232. Its totient is φ = 9552384.

The previous prime is 28956827. The next prime is 28956847. The reversal of 28956828 is 82865982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28956827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11275 + ... + 13602.

Almost surely, 2^28956828 is an apocalyptic number.

It is an amenable number.

28956828 is an abundant number, since it is smaller than the sum of its proper divisors (39308404).

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

28956828 is a wasteful number, since it uses less digits than its factorization.

28956828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24981 (or 24979 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 28956828 is about 5381.1548946300. The cubic root of 28956828 is about 307.0791493094.

The spelling of 28956828 in words is "twenty-eight million, nine hundred fifty-six thousand, eight hundred twenty-eight".