704839 has 2 divisors, whose sum is σ = 704840. Its totient is φ = 704838.

The previous prime is 704833. The next prime is 704849. The reversal of 704839 is 938407.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 704839 - 2⁵ = 704807 is a prime.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 704839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352419 + 352420.

It is an arithmetic number, because the mean of its divisors is an integer number (352420).

2⁷⁰⁴⁸³⁹ is an apocalyptic number.

704839 is a deficient number, since it is larger than the sum of its proper divisors (1).

704839 is an equidigital number, since it uses as much as digits as its factorization.

704839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 704839 is about 839.5469016082. The cubic root of 704839 is about 88.9945289740.

The spelling of 704839 in words is "seven hundred four thousand, eight hundred thirty-nine".