28135713 has 16 divisors (see below), whose sum is σ = 40852800. Its totient is φ = 17156160.

The previous prime is 28135703. The next prime is 28135727. The reversal of 28135713 is 31753182.

It is not a de Polignac number, because 28135713 - 2⁶ = 28135649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28135703) by changing a digit.

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, 6858 + ... + 10163.

It is an arithmetic number, because the mean of its divisors is an integer number (2553300).

Almost surely, 2^28135713 is an apocalyptic number.

It is an amenable number.

28135713 is a deficient number, since it is larger than the sum of its proper divisors (12717087).

28135713 is a wasteful number, since it uses less digits than its factorization.

28135713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17072.

The product of its digits is 5040, while the sum is 30.

The square root of 28135713 is about 5304.3107940618. The cubic root of 28135713 is about 304.1487073986.

Adding to 28135713 its reverse (31753182), we get a palindrome (59888895).

The spelling of 28135713 in words is "twenty-eight million, one hundred thirty-five thousand, seven hundred thirteen".