1704289 has 2 divisors, whose sum is σ = 1704290. Its totient is φ = 1704288.

The previous prime is 1704271. The next prime is 1704299. The reversal of 1704289 is 9824071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1459264 + 245025 = 1208^2 + 495^2 .

It is an emirp because it is prime and its reverse (9824071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1704289 - 2⁷ = 1704161 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1704289.

It is not a weakly prime, because it can be changed into another prime (1704229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852144 + 852145.

It is an arithmetic number, because the mean of its divisors is an integer number (852145).

2^1704289 is an apocalyptic number.

It is an amenable number.

1704289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1704289 is an equidigital number, since it uses as much as digits as its factorization.

1704289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1704289 is about 1305.4842013598. The cubic root of 1704289 is about 119.4486044983.

The spelling of 1704289 in words is "one million, seven hundred four thousand, two hundred eighty-nine".