28044873 has 24 divisors (see below), whose sum is σ = 42378336. Its totient is φ = 18532800.

The previous prime is 28044847. The next prime is 28044881. The reversal of 28044873 is 37844082.

It is not a de Polignac number, because 28044873 - 2⁸ = 28044617 is a prime.

It is a super-2 number, since 2×28044873² = 1573029803172258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28044823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31393 + ... + 32273.

It is an arithmetic number, because the mean of its divisors is an integer number (1765764).

Almost surely, 2^28044873 is an apocalyptic number.

It is an amenable number.

28044873 is a deficient number, since it is larger than the sum of its proper divisors (14333463).

28044873 is an equidigital number, since it uses as much as digits as its factorization.

28044873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 28044873 is about 5295.7410246348. The cubic root of 28044873 is about 303.8210259147.

The spelling of 28044873 in words is "twenty-eight million, forty-four thousand, eight hundred seventy-three".