212708189 has 8 divisors (see below), whose sum is σ = 215807328. Its totient is φ = 209629840.

The previous prime is 212708179. The next prime is 212708201. The reversal of 212708189 is 981807212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212708189 - 2¹⁶ = 212642653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212708179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16034 + ... + 26124.

It is an arithmetic number, because the mean of its divisors is an integer number (26975916).

Almost surely, 2^212708189 is an apocalyptic number.

It is an amenable number.

212708189 is a deficient number, since it is larger than the sum of its proper divisors (3099139).

212708189 is a wasteful number, since it uses less digits than its factorization.

212708189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10395.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 212708189 is about 14584.5188127686. The cubic root of 212708189 is about 596.9364108447.

The spelling of 212708189 in words is "two hundred twelve million, seven hundred eight thousand, one hundred eighty-nine".