28579265 has 16 divisors (see below), whose sum is σ = 40291776. Its totient is φ = 19185600.

The previous prime is 28579231. The next prime is 28579273. The reversal of 28579265 is 56297582.

It is not a de Polignac number, because 28579265 - 2¹⁴ = 28562881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 19271 + ... + 20700.

It is an arithmetic number, because the mean of its divisors is an integer number (2518236).

Almost surely, 2^28579265 is an apocalyptic number.

It is an amenable number.

28579265 is a deficient number, since it is larger than the sum of its proper divisors (11712511).

28579265 is a wasteful number, since it uses less digits than its factorization.

28579265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40000.

The product of its digits is 302400, while the sum is 44.

The square root of 28579265 is about 5345.9578187636. The cubic root of 28579265 is about 305.7386557795.

The spelling of 28579265 in words is "twenty-eight million, five hundred seventy-nine thousand, two hundred sixty-five".