212670 has 48 divisors (see below), whose sum is σ = 589680. Its totient is φ = 52992.

The previous prime is 212669. The next prime is 212671. The reversal of 212670 is 76212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212669) and next prime (212671).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212671) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 1461 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (12285).

2²¹²⁶⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294840).

212670 is an abundant number, since it is smaller than the sum of its proper divisors (377010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212670 is a wasteful number, since it uses less digits than its factorization.

212670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 212670 is about 461.1615768904. The cubic root of 212670 is about 59.6900684640.

Adding to 212670 its reverse (76212), we get a palindrome (288882).

The spelling of 212670 in words is "two hundred twelve thousand, six hundred seventy".