84550 has 24 divisors (see below), whose sum is σ = 167400. Its totient is φ = 31680.

The previous prime is 84533. The next prime is 84551. The reversal of 84550 is 5548.

It is a happy number.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 906 + ... + 994.

It is an arithmetic number, because the mean of its divisors is an integer number (6975).

2⁸⁴⁵⁵⁰ is an apocalyptic number.

84550 is a deficient number, since it is larger than the sum of its proper divisors (82850).

84550 is a wasteful number, since it uses less digits than its factorization.

84550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 84550 is about 290.7748269710. The cubic root of 84550 is about 43.8905682801.

The spelling of 84550 in words is "eighty-four thousand, five hundred fifty".