28524117 has 16 divisors (see below), whose sum is σ = 40088448. Its totient is φ = 18004800.

The previous prime is 28524109. The next prime is 28524121. The reversal of 28524117 is 71142582.

It is not a de Polignac number, because 28524117 - 2³ = 28524109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28524107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4923 + ... + 9015.

It is an arithmetic number, because the mean of its divisors is an integer number (2505528).

Almost surely, 2^28524117 is an apocalyptic number.

It is an amenable number.

28524117 is a deficient number, since it is larger than the sum of its proper divisors (11564331).

28524117 is a wasteful number, since it uses less digits than its factorization.

28524117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220.

The product of its digits is 4480, while the sum is 30.

The square root of 28524117 is about 5340.7974123721. The cubic root of 28524117 is about 305.5418728761.

Adding to 28524117 its reverse (71142582), we get a palindrome (99666699).

The spelling of 28524117 in words is "twenty-eight million, five hundred twenty-four thousand, one hundred seventeen".