2206439 has 2 divisors, whose sum is σ = 2206440. Its totient is φ = 2206438.

The previous prime is 2206429. The next prime is 2206441. The reversal of 2206439 is 9346022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2206439 - 2¹⁶ = 2140903 is a prime.

Together with 2206441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2206429) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103219 + 1103220.

It is an arithmetic number, because the mean of its divisors is an integer number (1103220).

2^2206439 is an apocalyptic number.

2206439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206439 is an equidigital number, since it uses as much as digits as its factorization.

2206439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2206439 is about 1485.4086979683. The cubic root of 2206439 is about 130.1859075846.

The spelling of 2206439 in words is "two million, two hundred six thousand, four hundred thirty-nine".