212179394 has 8 divisors (see below), whose sum is σ = 363736128. Its totient is φ = 90934020.

The previous prime is 212179379. The next prime is 212179459. The reversal of 212179394 is 493971212.

212179394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

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, 7577822 + ... + 7577849.

It is an arithmetic number, because the mean of its divisors is an integer number (45467016).

Almost surely, 2^212179394 is an apocalyptic number.

212179394 is a deficient number, since it is larger than the sum of its proper divisors (151556734).

212179394 is a wasteful number, since it uses less digits than its factorization.

212179394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15155680.

The product of its digits is 27216, while the sum is 38.

The square root of 212179394 is about 14566.3788911315. The cubic root of 212179394 is about 596.4413367742.

The spelling of 212179394 in words is "two hundred twelve million, one hundred seventy-nine thousand, three hundred ninety-four".