212726 has 4 divisors (see below), whose sum is σ = 319092. Its totient is φ = 106362.

The previous prime is 212701. The next prime is 212777. The reversal of 212726 is 627212.

212726 is digitally balanced in base 3, 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 junction number, because it is equal to n+sod(n) for n = 212698 and 212707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53180 + ... + 53183.

It is an arithmetic number, because the mean of its divisors is an integer number (79773).

2²¹²⁷²⁶ is an apocalyptic number.

212726 is a deficient number, since it is larger than the sum of its proper divisors (106366).

212726 is a wasteful number, since it uses less digits than its factorization.

212726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106365.

The product of its digits is 336, while the sum is 20.

The square root of 212726 is about 461.2222891405. Note that the first 4 decimals coincide. The cubic root of 212726 is about 59.6953071757.

Adding to 212726 its reverse (627212), we get a palindrome (839938).

It can be divided in two parts, 2 and 12726, that multiplied together give a palindrome (25452).

The spelling of 212726 in words is "two hundred twelve thousand, seven hundred twenty-six".