28585396 has 12 divisors (see below), whose sum is σ = 57170848. Its totient is φ = 12250872.

The previous prime is 28585331. The next prime is 28585399. The reversal of 28585396 is 69358582.

28585396 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28585399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510426 + ... + 510481.

Almost surely, 2^28585396 is an apocalyptic number.

It is an amenable number.

28585396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28585396 is a wasteful number, since it uses less digits than its factorization.

28585396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020918 (or 1020916 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 28585396 is about 5346.5312119168. The cubic root of 28585396 is about 305.7605171963.

The spelling of 28585396 in words is "twenty-eight million, five hundred eighty-five thousand, three hundred ninety-six".