1608839 has 2 divisors, whose sum is σ = 1608840. Its totient is φ = 1608838.

The previous prime is 1608823. The next prime is 1608883. The reversal of 1608839 is 9388061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1608839 - 2⁴ = 1608823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1608799 and 1608808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1608239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804419 + 804420.

It is an arithmetic number, because the mean of its divisors is an integer number (804420).

2^1608839 is an apocalyptic number.

1608839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608839 is an equidigital number, since it uses as much as digits as its factorization.

1608839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1608839 is about 1268.4001734469. The cubic root of 1608839 is about 117.1756924044.

The spelling of 1608839 in words is "one million, six hundred eight thousand, eight hundred thirty-nine".