28596231 has 24 divisors (see below), whose sum is σ = 42188016. Its totient is φ = 18662400.

The previous prime is 28596223. The next prime is 28596241. The reversal of 28596231 is 13269582.

28596231 is a `hidden beast` number, since 28 + 5 + 9 + 623 + 1 = 666.

It is not a de Polignac number, because 28596231 - 2³ = 28596223 is a prime.

It is a super-2 number, since 2×28596231² = 1635488854810722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28596221) 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 23 ways as a sum of consecutive naturals, for example, 148071 + ... + 148263.

It is an arithmetic number, because the mean of its divisors is an integer number (1757834).

Almost surely, 2^28596231 is an apocalyptic number.

28596231 is a deficient number, since it is larger than the sum of its proper divisors (13591785).

28596231 is a wasteful number, since it uses less digits than its factorization.

28596231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 460 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 28596231 is about 5347.5443897176. The cubic root of 28596231 is about 305.7991441082.

The spelling of 28596231 in words is "twenty-eight million, five hundred ninety-six thousand, two hundred thirty-one".