1683601 has 2 divisors, whose sum is σ = 1683602. Its totient is φ = 1683600.

The previous prime is 1683589. The next prime is 1683631. The reversal of 1683601 is 1063861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952576 + 731025 = 976^2 + 855^2 .

It is a cyclic number.

It is not a de Polignac number, because 1683601 - 2⁹ = 1683089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1683631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841800 + 841801.

It is an arithmetic number, because the mean of its divisors is an integer number (841801).

2^1683601 is an apocalyptic number.

It is an amenable number.

1683601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683601 is an equidigital number, since it uses as much as digits as its factorization.

1683601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1683601 is about 1297.5365120104. The cubic root of 1683601 is about 118.9633151992.

The spelling of 1683601 in words is "one million, six hundred eighty-three thousand, six hundred one".