28549241 has 8 divisors (see below), whose sum is σ = 32672640. Its totient is φ = 24437088.

The previous prime is 28549217. The next prime is 28549259. The reversal of 28549241 is 14294582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28549241 - 2⁶ = 28549177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28549271) 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, 3620 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (4084080).

Almost surely, 2^28549241 is an apocalyptic number.

It is an amenable number.

28549241 is a deficient number, since it is larger than the sum of its proper divisors (4123399).

28549241 is an equidigital number, since it uses as much as digits as its factorization.

28549241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5623.

The product of its digits is 23040, while the sum is 35.

The square root of 28549241 is about 5343.1489778968. The cubic root of 28549241 is about 305.6315534941.

The spelling of 28549241 in words is "twenty-eight million, five hundred forty-nine thousand, two hundred forty-one".