28104873 has 8 divisors (see below), whose sum is σ = 39102528. Its totient is φ = 17921904.

The previous prime is 28104863. The next prime is 28104883. The reversal of 28104873 is 37840182.

It is an interprime number because it is at equal distance from previous prime (28104863) and next prime (28104883).

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

It is not a de Polignac number, because 28104873 - 2⁵ = 28104841 is a prime.

It is a super-2 number, since 2×28104873² = 1579767772692258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28104833) 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, 203590 + ... + 203727.

It is an arithmetic number, because the mean of its divisors is an integer number (4887816).

Almost surely, 2^28104873 is an apocalyptic number.

28104873 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28104873 is a deficient number, since it is larger than the sum of its proper divisors (10997655).

28104873 is a wasteful number, since it uses less digits than its factorization.

28104873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407343.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28104873 is about 5301.4029275278. The cubic root of 28104873 is about 304.0375393682.

The spelling of 28104873 in words is "twenty-eight million, one hundred four thousand, eight hundred seventy-three".