212908 has 24 divisors (see below), whose sum is σ = 411264. Its totient is φ = 96000.

The previous prime is 212903. The next prime is 212909. The reversal of 212908 is 809212.

It is not an unprimeable number, because it can be changed into a prime (212903) by changing a digit.

212908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2058 + ... + 2158.

It is an arithmetic number, because the mean of its divisors is an integer number (17136).

2²¹²⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

212908 is a deficient number, since it is larger than the sum of its proper divisors (198356).

212908 is a wasteful number, since it uses less digits than its factorization.

212908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 212908 is about 461.4195487840. The cubic root of 212908 is about 59.7123266420.

The spelling of 212908 in words is "two hundred twelve thousand, nine hundred eight".