28497 has 16 divisors (see below), whose sum is σ = 46080. Its totient is φ = 15312.

The previous prime is 28493. The next prime is 28499. The reversal of 28497 is 79482.

28497 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 28497 - 2² = 28493 is a prime.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a zygodrome in base 6.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28497.

It is not an unprimeable number, because it can be changed into a prime (28493) 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, 454 + ... + 512.

It is an arithmetic number, because the mean of its divisors is an integer number (2880).

2²⁸⁴⁹⁷ is an apocalyptic number.

28497 is the 138-th pentagonal number.

It is an amenable number.

28497 is a deficient number, since it is larger than the sum of its proper divisors (17583).

28497 is a wasteful number, since it uses less digits than its factorization.

28497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92.

The product of its digits is 4032, while the sum is 30.

The square root of 28497 is about 168.8105446943. The cubic root of 28497 is about 30.5445019093.

It can be divided in two parts, 28 and 497, that added together give a palindrome (525).

The spelling of 28497 in words is "twenty-eight thousand, four hundred ninety-seven".