28862 has 4 divisors (see below), whose sum is σ = 43296. Its totient is φ = 14430.

The previous prime is 28859. The next prime is 28867. The reversal of 28862 is 26882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26882 = 2 ⋅13441.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28862.

It is not an unprimeable number, because it can be changed into a prime (28867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7214 + ... + 7217.

It is an arithmetic number, because the mean of its divisors is an integer number (10824).

2²⁸⁸⁶² is an apocalyptic number.

28862 is a deficient number, since it is larger than the sum of its proper divisors (14434).

28862 is a wasteful number, since it uses less digits than its factorization.

28862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14433.

The product of its digits is 1536, while the sum is 26.

The square root of 28862 is about 169.8881985307. Note that the first 3 decimals coincide. The cubic root of 28862 is about 30.6743574494.

The spelling of 28862 in words is "twenty-eight thousand, eight hundred sixty-two".