84556 has 6 divisors (see below), whose sum is σ = 147980. Its totient is φ = 42276.

The previous prime is 84551. The next prime is 84559. The reversal of 84556 is 65548.

It is not an unprimeable number, because it can be changed into a prime (84551) 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 as a sum of consecutive naturals, namely, 10566 + ... + 10573.

2⁸⁴⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

84556 is a deficient number, since it is larger than the sum of its proper divisors (63424).

84556 is a wasteful number, since it uses less digits than its factorization.

84556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21143 (or 21141 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 84556 is about 290.7851440497. The cubic root of 84556 is about 43.8916064712.

The spelling of 84556 in words is "eighty-four thousand, five hundred fifty-six".