320049839 has 2 divisors, whose sum is σ = 320049840. Its totient is φ = 320049838.

The previous prime is 320049791. The next prime is 320049907. The reversal of 320049839 is 938940023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320049839 - 2¹² = 320045743 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 (320079839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160024919 + 160024920.

It is an arithmetic number, because the mean of its divisors is an integer number (160024920).

Almost surely, 2^320049839 is an apocalyptic number.

320049839 is a deficient number, since it is larger than the sum of its proper divisors (1).

320049839 is an equidigital number, since it uses as much as digits as its factorization.

320049839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 320049839 is about 17889.9368081612. The cubic root of 320049839 is about 684.0258866153.

The spelling of 320049839 in words is "three hundred twenty million, forty-nine thousand, eight hundred thirty-nine".