28654271 has 4 divisors (see below), whose sum is σ = 28705200. Its totient is φ = 28603344.

The previous prime is 28654267. The next prime is 28654289. The reversal of 28654271 is 17245682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17245682 = 2 ⋅8622841.

It is a cyclic number.

It is not a de Polignac number, because 28654271 - 2² = 28654267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28654771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24611 + ... + 25748.

It is an arithmetic number, because the mean of its divisors is an integer number (7176300).

Almost surely, 2^28654271 is an apocalyptic number.

28654271 is a deficient number, since it is larger than the sum of its proper divisors (50929).

28654271 is an equidigital number, since it uses as much as digits as its factorization.

28654271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50928.

The product of its digits is 26880, while the sum is 35.

The square root of 28654271 is about 5352.9684288253. The cubic root of 28654271 is about 306.0058914952.

The spelling of 28654271 in words is "twenty-eight million, six hundred fifty-four thousand, two hundred seventy-one".