28560685 has 8 divisors (see below), whose sum is σ = 34384896. Its totient is φ = 22773840.

The previous prime is 28560671. The next prime is 28560691. The reversal of 28560685 is 58606582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28560685 - 2¹¹ = 28558637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7629 + ... + 10738.

It is an arithmetic number, because the mean of its divisors is an integer number (4298112).

Almost surely, 2^28560685 is an apocalyptic number.

It is an amenable number.

28560685 is a deficient number, since it is larger than the sum of its proper divisors (5824211).

28560685 is a wasteful number, since it uses less digits than its factorization.

28560685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18683.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 28560685 is about 5344.2197746724. The cubic root of 28560685 is about 305.6723856392.

The spelling of 28560685 in words is "twenty-eight million, five hundred sixty thousand, six hundred eighty-five".