28265853 has 16 divisors (see below), whose sum is σ = 46987776. Its totient is φ = 14683440.

The previous prime is 28265843. The next prime is 28265879. The reversal of 28265853 is 35856282.

It is not a de Polignac number, because 28265853 - 2⁴ = 28265837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28265803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60951 + ... + 61412.

It is an arithmetic number, because the mean of its divisors is an integer number (2936736).

Almost surely, 2^28265853 is an apocalyptic number.

It is an amenable number.

28265853 is a deficient number, since it is larger than the sum of its proper divisors (18721923).

28265853 is a wasteful number, since it uses less digits than its factorization.

28265853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122384.

The product of its digits is 115200, while the sum is 39.

The square root of 28265853 is about 5316.5640219977. The cubic root of 28265853 is about 304.6169265764.

The spelling of 28265853 in words is "twenty-eight million, two hundred sixty-five thousand, eight hundred fifty-three".