212338879 has 4 divisors (see below), whose sum is σ = 215508184. Its totient is φ = 209169576.

The previous prime is 212338873. The next prime is 212338897. The reversal of 212338879 is 978833212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212338879 - 2¹⁹ = 211814591 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 (212338873) 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, 1584552 + ... + 1584685.

It is an arithmetic number, because the mean of its divisors is an integer number (53877046).

Almost surely, 2^212338879 is an apocalyptic number.

212338879 is a deficient number, since it is larger than the sum of its proper divisors (3169305).

212338879 is an equidigital number, since it uses as much as digits as its factorization.

212338879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169304.

The product of its digits is 145152, while the sum is 43.

The square root of 212338879 is about 14571.8522844558. The cubic root of 212338879 is about 596.5907380607.

The spelling of 212338879 in words is "two hundred twelve million, three hundred thirty-eight thousand, eight hundred seventy-nine".