84256 has 12 divisors (see below), whose sum is σ = 165942. Its totient is φ = 42112.

The previous prime is 84247. The next prime is 84263. The reversal of 84256 is 65248.

It can be written as a sum of positive squares in only one way, i.e., 80656 + 3600 = 284^2 + 60^2 .

It is a pancake number, because a pancake can be divided into 84256 parts by 410 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 84256.

It is an unprimeable number.

84256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1285 + ... + 1348.

2⁸⁴²⁵⁶ is an apocalyptic number.

It is an amenable number.

84256 is a deficient number, since it is larger than the sum of its proper divisors (81686).

84256 is a wasteful number, since it uses less digits than its factorization.

84256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643 (or 2635 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 84256 is about 290.2688409044. The cubic root of 84256 is about 43.8396366319.

It can be divided in two parts, 842 and 56, that added together give a palindrome (898).

The spelling of 84256 in words is "eighty-four thousand, two hundred fifty-six".