28085113 has 8 divisors (see below), whose sum is σ = 32409728. Its totient is φ = 23838624.

The previous prime is 28085087. The next prime is 28085119. The reversal of 28085113 is 31158082.

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

It is a cyclic number.

It is not a de Polignac number, because 28085113 - 2⁹ = 28084601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28085119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18756 + ... + 20197.

It is an arithmetic number, because the mean of its divisors is an integer number (4051216).

Almost surely, 2^28085113 is an apocalyptic number.

It is an amenable number.

28085113 is a deficient number, since it is larger than the sum of its proper divisors (4324615).

28085113 is a wasteful number, since it uses less digits than its factorization.

28085113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39063.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 28085113 is about 5299.5389422100. The cubic root of 28085113 is about 303.9662683314.

It can be divided in two parts, 2808 and 5113, that added together give a square (7921 = 89²).

The spelling of 28085113 in words is "twenty-eight million, eighty-five thousand, one hundred thirteen".