28546784 has 48 divisors (see below), whose sum is σ = 66318336. Its totient is φ = 11836800.

The previous prime is 28546751. The next prime is 28546787. The reversal of 28546784 is 48764582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28546787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4889 + ... + 8999.

It is an arithmetic number, because the mean of its divisors is an integer number (1381632).

Almost surely, 2^28546784 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 28546784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33159168).

28546784 is an abundant number, since it is smaller than the sum of its proper divisors (37771552).

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

28546784 is a wasteful number, since it uses less digits than its factorization.

28546784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159 (or 4151 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 28546784 is about 5342.9190523533. The cubic root of 28546784 is about 305.6227855054.

The spelling of 28546784 in words is "twenty-eight million, five hundred forty-six thousand, seven hundred eighty-four".