28579875 has 16 divisors (see below), whose sum is σ = 47557536. Its totient is φ = 15242400.

The previous prime is 28579867. The next prime is 28579891. The reversal of 28579875 is 57897582.

It is not a de Polignac number, because 28579875 - 2³ = 28579867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37732 + ... + 38481.

It is an arithmetic number, because the mean of its divisors is an integer number (2972346).

Almost surely, 2^28579875 is an apocalyptic number.

28579875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28579875 is a deficient number, since it is larger than the sum of its proper divisors (18977661).

28579875 is an equidigital number, since it uses as much as digits as its factorization.

28579875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76231 (or 76221 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 51.

The square root of 28579875 is about 5346.0148709109. The cubic root of 28579875 is about 305.7408310075.

The spelling of 28579875 in words is "twenty-eight million, five hundred seventy-nine thousand, eight hundred seventy-five".