1689385007 has 2 divisors, whose sum is σ = 1689385008. Its totient is φ = 1689385006.

The previous prime is 1689385001. The next prime is 1689385037. The reversal of 1689385007 is 7005839861.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1689385007 - 2⁸ = 1689384751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1689385001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844692503 + 844692504.

It is an arithmetic number, because the mean of its divisors is an integer number (844692504).

Almost surely, 2^1689385007 is an apocalyptic number.

1689385007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689385007 is an equidigital number, since it uses as much as digits as its factorization.

1689385007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1689385007 is about 41102.1289837887. The cubic root of 1689385007 is about 1190.9939221059.

The spelling of 1689385007 in words is "one billion, six hundred eighty-nine million, three hundred eighty-five thousand, seven".