28274875 has 8 divisors (see below), whose sum is σ = 35287200. Its totient is φ = 22619800.

The previous prime is 28274809. The next prime is 28274887. The reversal of 28274875 is 57847282.

It is not a de Polignac number, because 28274875 - 2¹⁵ = 28242107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112975 + ... + 113224.

It is an arithmetic number, because the mean of its divisors is an integer number (4410900).

Almost surely, 2^28274875 is an apocalyptic number.

28274875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28274875 is a deficient number, since it is larger than the sum of its proper divisors (7012325).

28274875 is an equidigital number, since it uses as much as digits as its factorization.

28274875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226214 (or 226204 counting only the distinct ones).

The product of its digits is 250880, while the sum is 43.

The square root of 28274875 is about 5317.4124346340. The cubic root of 28274875 is about 304.6493327164.

It can be divided in two parts, 282 and 74875, that added together give a palindrome (75157).

The spelling of 28274875 in words is "twenty-eight million, two hundred seventy-four thousand, eight hundred seventy-five".