2211439 has 2 divisors, whose sum is σ = 2211440. Its totient is φ = 2211438.

The previous prime is 2211413. The next prime is 2211481. The reversal of 2211439 is 9341122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2211439 - 2¹⁹ = 1687151 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105719 + 1105720.

It is an arithmetic number, because the mean of its divisors is an integer number (1105720).

2^2211439 is an apocalyptic number.

2211439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211439 is an equidigital number, since it uses as much as digits as its factorization.

2211439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 2211439 is about 1487.0907840478. The cubic root of 2211439 is about 130.2841712675.

The spelling of 2211439 in words is "two million, two hundred eleven thousand, four hundred thirty-nine".