28267 has 4 divisors (see below), whose sum is σ = 29520. Its totient is φ = 27016.

The previous prime is 28229. The next prime is 28277. The reversal of 28267 is 76282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28267 is a prime.

It is a d-powerful number, because it can be written as 2² + 8⁴ + 2¹⁴ + 6⁵ + 7 .

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (28277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592 + ... + 637.

It is an arithmetic number, because the mean of its divisors is an integer number (7380).

2²⁸²⁶⁷ is an apocalyptic number.

28267 is a deficient number, since it is larger than the sum of its proper divisors (1253).

28267 is a wasteful number, since it uses less digits than its factorization.

28267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252.

The product of its digits is 1344, while the sum is 25.

The square root of 28267 is about 168.1279274838. The cubic root of 28267 is about 30.4621046871.

The spelling of 28267 in words is "twenty-eight thousand, two hundred sixty-seven".