28975205 has 16 divisors (see below), whose sum is σ = 41109120. Its totient is φ = 19182912.

The previous prime is 28975201. The next prime is 28975211. The reversal of 28975205 is 50257982.

It is not a de Polignac number, because 28975205 - 2² = 28975201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28975201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13259 + ... + 15288.

It is an arithmetic number, because the mean of its divisors is an integer number (2569320).

Almost surely, 2^28975205 is an apocalyptic number.

It is an amenable number.

28975205 is a deficient number, since it is larger than the sum of its proper divisors (12133915).

28975205 is a wasteful number, since it uses less digits than its factorization.

28975205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28588.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 28975205 is about 5382.8621568827. The cubic root of 28975205 is about 307.1440965723.

The spelling of 28975205 in words is "twenty-eight million, nine hundred seventy-five thousand, two hundred five".