28547382 has 16 divisors (see below), whose sum is σ = 57239280. Its totient is φ = 9491712.

The previous prime is 28547381. The next prime is 28547413. The reversal of 28547382 is 28374582.

It is a self number, because there is not a number n which added to its sum of digits gives 28547382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28547381) 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, 3363 + ... + 8270.

It is an arithmetic number, because the mean of its divisors is an integer number (3577455).

Almost surely, 2^28547382 is an apocalyptic number.

28547382 is an abundant number, since it is smaller than the sum of its proper divisors (28691898).

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

28547382 is a wasteful number, since it uses less digits than its factorization.

28547382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12047.

The product of its digits is 107520, while the sum is 39.

The square root of 28547382 is about 5342.9750139786. The cubic root of 28547382 is about 305.6249195595.

The spelling of 28547382 in words is "twenty-eight million, five hundred forty-seven thousand, three hundred eighty-two".