28126 has 16 divisors (see below), whose sum is σ = 50400. Its totient is φ = 11760.

The previous prime is 28123. The next prime is 28151. The reversal of 28126 is 62182.

It is a happy number.

Its product of digits (192) is a multiple of the sum of its prime factors (64).

28126 is a modest number, since divided by 126 gives 28 as remainder.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28123) 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 7 ways as a sum of consecutive naturals, for example, 666 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (3150).

2²⁸¹²⁶ is an apocalyptic number.

28126 is a deficient number, since it is larger than the sum of its proper divisors (22274).

28126 is an equidigital number, since it uses as much as digits as its factorization.

28126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 50 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 28126 is about 167.7080797100. The cubic root of 28126 is about 30.4113704004.

It can be divided in two parts, 2 and 8126, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 28126 in words is "twenty-eight thousand, one hundred twenty-six".