4206439 has 2 divisors, whose sum is σ = 4206440. Its totient is φ = 4206438.

The previous prime is 4206431. The next prime is 4206443. The reversal of 4206439 is 9346024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4206439 - 2³ = 4206431 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4206431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103219 + 2103220.

It is an arithmetic number, because the mean of its divisors is an integer number (2103220).

Almost surely, 2^4206439 is an apocalyptic number.

4206439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4206439 is an equidigital number, since it uses as much as digits as its factorization.

4206439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 4206439 is about 2050.9605066895. The cubic root of 4206439 is about 161.4252738289.

It can be divided in two parts, 420 and 6439, that added together give a cube (6859 = 19³).

The spelling of 4206439 in words is "four million, two hundred six thousand, four hundred thirty-nine".