212673 has 4 divisors (see below), whose sum is σ = 283568. Its totient is φ = 141780.

The previous prime is 212671. The next prime is 212677. The reversal of 212673 is 376212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212673 - 2¹ = 212671 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212671) 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, 35443 + ... + 35448.

It is an arithmetic number, because the mean of its divisors is an integer number (70892).

2²¹²⁶⁷³ is an apocalyptic number.

It is an amenable number.

212673 is a deficient number, since it is larger than the sum of its proper divisors (70895).

212673 is an equidigital number, since it uses as much as digits as its factorization.

212673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70894.

The product of its digits is 504, while the sum is 21.

The square root of 212673 is about 461.1648295350. The cubic root of 212673 is about 59.6903491326.

Adding to 212673 its reverse (376212), we get a palindrome (588885).

The spelling of 212673 in words is "two hundred twelve thousand, six hundred seventy-three".