28955828 has 24 divisors (see below), whose sum is σ = 58532544. Its totient is φ = 12387200.

The previous prime is 28955821. The next prime is 28955831. The reversal of 28955828 is 82855982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28955821) 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, 18608 + ... + 20103.

It is an arithmetic number, because the mean of its divisors is an integer number (2438856).

Almost surely, 2^28955828 is an apocalyptic number.

It is an amenable number.

28955828 is an abundant number, since it is smaller than the sum of its proper divisors (29576716).

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

28955828 is a wasteful number, since it uses less digits than its factorization.

28955828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38743 (or 38741 counting only the distinct ones).

The product of its digits is 460800, while the sum is 47.

The square root of 28955828 is about 5381.0619769707. The cubic root of 28955828 is about 307.0756143610.

The spelling of 28955828 in words is "twenty-eight million, nine hundred fifty-five thousand, eight hundred twenty-eight".