1689067 has 2 divisors, whose sum is σ = 1689068. Its totient is φ = 1689066.

The previous prime is 1689053. The next prime is 1689071. The reversal of 1689067 is 7609861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1689067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1689167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844533 + 844534.

It is an arithmetic number, because the mean of its divisors is an integer number (844534).

2^1689067 is an apocalyptic number.

1689067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689067 is an equidigital number, since it uses as much as digits as its factorization.

1689067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1689067 is about 1299.6411043053. The cubic root of 1689067 is about 119.0919187184.

The spelling of 1689067 in words is "one million, six hundred eighty-nine thousand, sixty-seven".