942439 has 2 divisors, whose sum is σ = 942440. Its totient is φ = 942438.

The previous prime is 942437. The next prime is 942449. The reversal of 942439 is 934249.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 942439 - 2¹ = 942437 is a prime.

Together with 942437, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 942439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (942433) 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, 471219 + 471220.

It is an arithmetic number, because the mean of its divisors is an integer number (471220).

2⁹⁴²⁴³⁹ is an apocalyptic number.

942439 is a deficient number, since it is larger than the sum of its proper divisors (1).

942439 is an equidigital number, since it uses as much as digits as its factorization.

942439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 942439 is about 970.7929748407. The cubic root of 942439 is about 98.0432614772.

The spelling of 942439 in words is "nine hundred forty-two thousand, four hundred thirty-nine".