438934211 has 2 divisors, whose sum is σ = 438934212. Its totient is φ = 438934210.

The previous prime is 438934207. The next prime is 438934213. The reversal of 438934211 is 112439834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438934211 - 2² = 438934207 is a prime.

Together with 438934213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (438934213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219467105 + 219467106.

It is an arithmetic number, because the mean of its divisors is an integer number (219467106).

Almost surely, 2^438934211 is an apocalyptic number.

438934211 is a deficient number, since it is larger than the sum of its proper divisors (1).

438934211 is an equidigital number, since it uses as much as digits as its factorization.

438934211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 438934211 is about 20950.7568121059. The cubic root of 438934211 is about 759.9758827758.

The spelling of 438934211 in words is "four hundred thirty-eight million, nine hundred thirty-four thousand, two hundred eleven".