1705667 has 2 divisors, whose sum is σ = 1705668. Its totient is φ = 1705666.

The previous prime is 1705637. The next prime is 1705679. The reversal of 1705667 is 7665071.

It is a strong prime.

It is an emirp because it is prime and its reverse (7665071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1705667 - 2¹² = 1701571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1705637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852833 + 852834.

It is an arithmetic number, because the mean of its divisors is an integer number (852834).

2^1705667 is an apocalyptic number.

1705667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1705667 is an equidigital number, since it uses as much as digits as its factorization.

1705667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 1705667 is about 1306.0118682462. The cubic root of 1705667 is about 119.4807891482.

The spelling of 1705667 in words is "one million, seven hundred five thousand, six hundred sixty-seven".