28608275 has 12 divisors (see below), whose sum is σ = 35563200. Its totient is φ = 22829280.

The previous prime is 28608259. The next prime is 28608311. The reversal of 28608275 is 57280682.

It is not a de Polignac number, because 28608275 - 2⁴ = 28608259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10781 + ... + 13169.

It is an arithmetic number, because the mean of its divisors is an integer number (2963600).

Almost surely, 2^28608275 is an apocalyptic number.

28608275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28608275 is a deficient number, since it is larger than the sum of its proper divisors (6954925).

28608275 is a wasteful number, since it uses less digits than its factorization.

28608275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878 (or 2873 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 28608275 is about 5348.6703955282. The cubic root of 28608275 is about 305.8420696712.

The spelling of 28608275 in words is "twenty-eight million, six hundred eight thousand, two hundred seventy-five".