28441173 has 4 divisors (see below), whose sum is σ = 37921568. Its totient is φ = 18960780.

The previous prime is 28441169. The next prime is 28441181. The reversal of 28441173 is 37114482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28441173 - 2² = 28441169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28441173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28441163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4740193 + ... + 4740198.

It is an arithmetic number, because the mean of its divisors is an integer number (9480392).

Almost surely, 2^28441173 is an apocalyptic number.

It is an amenable number.

28441173 is a deficient number, since it is larger than the sum of its proper divisors (9480395).

28441173 is an equidigital number, since it uses as much as digits as its factorization.

28441173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480394.

The product of its digits is 5376, while the sum is 30.

The square root of 28441173 is about 5333.0266265977. The cubic root of 28441173 is about 305.2454281831.

The spelling of 28441173 in words is "twenty-eight million, four hundred forty-one thousand, one hundred seventy-three".