212486 has 4 divisors (see below), whose sum is σ = 318732. Its totient is φ = 106242.

The previous prime is 212479. The next prime is 212501. The reversal of 212486 is 684212.

212486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

212486 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53120 + ... + 53123.

It is an arithmetic number, because the mean of its divisors is an integer number (79683).

2²¹²⁴⁸⁶ is an apocalyptic number.

212486 is a deficient number, since it is larger than the sum of its proper divisors (106246).

212486 is a wasteful number, since it uses less digits than its factorization.

212486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106245.

The product of its digits is 768, while the sum is 23.

The square root of 212486 is about 460.9620374825. The cubic root of 212486 is about 59.6728490762.

Adding to 212486 its reverse (684212), we get a palindrome (896698).

The spelling of 212486 in words is "two hundred twelve thousand, four hundred eighty-six".