84212 has 12 divisors (see below), whose sum is σ = 151620. Its totient is φ = 40896.

The previous prime is 84211. The next prime is 84221. The reversal of 84212 is 21248.

It can be written as a sum of positive squares in 2 ways, for example, as 45796 + 38416 = 214^2 + 196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137 + ... + 432.

It is an arithmetic number, because the mean of its divisors is an integer number (12635).

2⁸⁴²¹² is an apocalyptic number.

It is an amenable number.

84212 is a deficient number, since it is larger than the sum of its proper divisors (67408).

84212 is a wasteful number, since it uses less digits than its factorization.

84212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 84212 is about 290.1930391998. The cubic root of 84212 is about 43.8320040206.

The spelling of 84212 in words is "eighty-four thousand, two hundred twelve".