28585704 has 64 divisors (see below), whose sum is σ = 86486400. Its totient is φ = 7686144.

The previous prime is 28585703. The next prime is 28585717. The reversal of 28585704 is 40758582.

It is not an unprimeable number, because it can be changed into a prime (28585703) 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 15 ways as a sum of consecutive naturals, for example, 2149 + ... + 7860.

It is an arithmetic number, because the mean of its divisors is an integer number (1351350).

Almost surely, 2^28585704 is an apocalyptic number.

28585704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28585704 is an abundant number, since it is smaller than the sum of its proper divisors (57900696).

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

28585704 is a wasteful number, since it uses less digits than its factorization.

28585704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042 (or 10038 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 28585704 is about 5346.5600155614. The cubic root of 28585704 is about 305.7616153550.

The spelling of 28585704 in words is "twenty-eight million, five hundred eighty-five thousand, seven hundred four".