28010875 has 16 divisors (see below), whose sum is σ = 35114976. Its totient is φ = 22308000.

The previous prime is 28010869. The next prime is 28010893. The reversal of 28010875 is 57801082.

It is not a de Polignac number, because 28010875 - 2³ = 28010867 is a prime.

It is a Duffinian number.

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, 41037 + ... + 41713.

It is an arithmetic number, because the mean of its divisors is an integer number (2194686).

Almost surely, 2^28010875 is an apocalyptic number.

28010875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28010875 is a deficient number, since it is larger than the sum of its proper divisors (7104101).

28010875 is an equidigital number, since it uses as much as digits as its factorization.

28010875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 28010875 is about 5292.5301132823. The cubic root of 28010875 is about 303.6982050813.

The spelling of 28010875 in words is "twenty-eight million, ten thousand, eight hundred seventy-five".