1680527 has 2 divisors, whose sum is σ = 1680528. Its totient is φ = 1680526.

The previous prime is 1680509. The next prime is 1680529. The reversal of 1680527 is 7250861.

It is a strong prime.

It is an emirp because it is prime and its reverse (7250861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1680527 - 2⁸ = 1680271 is a prime.

Together with 1680529, it forms a pair of twin primes.

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 1680527.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1680529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840263 + 840264.

It is an arithmetic number, because the mean of its divisors is an integer number (840264).

2^1680527 is an apocalyptic number.

1680527 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680527 is an equidigital number, since it uses as much as digits as its factorization.

1680527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1680527 is about 1296.3514184047. The cubic root of 1680527 is about 118.8908681004.

The spelling of 1680527 in words is "one million, six hundred eighty thousand, five hundred twenty-seven".