212008839 has 24 divisors (see below), whose sum is σ = 330544368. Its totient is φ = 120516480.

The previous prime is 212008807. The next prime is 212008843. The reversal of 212008839 is 938800212.

It is not a de Polignac number, because 212008839 - 2⁵ = 212008807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212008439) 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 23 ways as a sum of consecutive naturals, for example, 25299 + ... + 32619.

It is an arithmetic number, because the mean of its divisors is an integer number (13772682).

Almost surely, 2^212008839 is an apocalyptic number.

212008839 is a deficient number, since it is larger than the sum of its proper divisors (118535529).

212008839 is a wasteful number, since it uses less digits than its factorization.

212008839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535 (or 7528 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 212008839 is about 14560.5233079035. The cubic root of 212008839 is about 596.2814825441.

The spelling of 212008839 in words is "two hundred twelve million, eight thousand, eight hundred thirty-nine".