212086 has 8 divisors (see below), whose sum is σ = 363600. Its totient is φ = 90888.

The previous prime is 212081. The next prime is 212099. The reversal of 212086 is 680212.

It is a happy number.

212086 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7561 + ... + 7588.

It is an arithmetic number, because the mean of its divisors is an integer number (45450).

2²¹²⁰⁸⁶ is an apocalyptic number.

212086 is a deficient number, since it is larger than the sum of its proper divisors (151514).

212086 is a wasteful number, since it uses less digits than its factorization.

212086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15158.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 212086 is about 460.5279578918. The cubic root of 212086 is about 59.6353813011.

Adding to 212086 its reverse (680212), we get a palindrome (892298).

The spelling of 212086 in words is "two hundred twelve thousand, eighty-six".