211938379 has 2 divisors, whose sum is σ = 211938380. Its totient is φ = 211938378.

The previous prime is 211938367. The next prime is 211938421. The reversal of 211938379 is 973839112.

211938379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211938379 - 2⁹ = 211937867 is a prime.

It is not a weakly prime, because it can be changed into another prime (211938359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105969189 + 105969190.

It is an arithmetic number, because the mean of its divisors is an integer number (105969190).

Almost surely, 2^211938379 is an apocalyptic number.

211938379 is a deficient number, since it is larger than the sum of its proper divisors (1).

211938379 is an equidigital number, since it uses as much as digits as its factorization.

211938379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 211938379 is about 14558.1035509437. The cubic root of 211938379 is about 596.2154182411.

The spelling of 211938379 in words is "two hundred eleven million, nine hundred thirty-eight thousand, three hundred seventy-nine".