84312256 has 28 divisors (see below), whose sum is σ = 191209168. Its totient is φ = 36133632.

The previous prime is 84312223. The next prime is 84312259. The reversal of 84312256 is 65221348.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (84312259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93651 + ... + 94546.

Almost surely, 2^84312256 is an apocalyptic number.

It is an amenable number.

84312256 is an abundant number, since it is smaller than the sum of its proper divisors (106896912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84312256 is a wasteful number, since it uses less digits than its factorization.

84312256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188216 (or 188206 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 84312256 is about 9182.1705494943. The cubic root of 84312256 is about 438.4939140270.

The spelling of 84312256 in words is "eighty-four million, three hundred twelve thousand, two hundred fifty-six".