212470 has 8 divisors (see below), whose sum is σ = 382464. Its totient is φ = 84984.

The previous prime is 212467. The next prime is 212479. The reversal of 212470 is 74212.

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 (212479) 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 3 ways as a sum of consecutive naturals, for example, 10614 + ... + 10633.

It is an arithmetic number, because the mean of its divisors is an integer number (47808).

2²¹²⁴⁷⁰ is an apocalyptic number.

212470 is a deficient number, since it is larger than the sum of its proper divisors (169994).

212470 is a wasteful number, since it uses less digits than its factorization.

212470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21254.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 212470 is about 460.9446821474. The cubic root of 212470 is about 59.6713512685.

Adding to 212470 its reverse (74212), we get a palindrome (286682).

The spelling of 212470 in words is "two hundred twelve thousand, four hundred seventy", and thus it is an iban number.