28893184 has 28 divisors (see below), whose sum is σ = 57799224. Its totient is φ = 14442496.

The previous prime is 28893173. The next prime is 28893191. The reversal of 28893184 is 48139882.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28893184.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6429 + ... + 9955.

It is an arithmetic number, because the mean of its divisors is an integer number (2064258).

Almost surely, 2^28893184 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28893184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28899612).

28893184 is an abundant number, since it is smaller than the sum of its proper divisors (28906040).

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

28893184 is an frugal number, since it uses more digits than its factorization.

28893184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553 (or 3529 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 28893184 is about 5375.2380412406. The cubic root of 28893184 is about 306.8540086133.

The spelling of 28893184 in words is "twenty-eight million, eight hundred ninety-three thousand, one hundred eighty-four".