1683523 has 2 divisors, whose sum is σ = 1683524. Its totient is φ = 1683522.

The previous prime is 1683503. The next prime is 1683553. The reversal of 1683523 is 3253861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1683523 - 2⁵ = 1683491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1683491 and 1683500.

It is not a weakly prime, because it can be changed into another prime (1683503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841761 + 841762.

It is an arithmetic number, because the mean of its divisors is an integer number (841762).

2^1683523 is an apocalyptic number.

1683523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683523 is an equidigital number, since it uses as much as digits as its factorization.

1683523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 1683523 is about 1297.5064547046. The cubic root of 1683523 is about 118.9614780098.

The spelling of 1683523 in words is "one million, six hundred eighty-three thousand, five hundred twenty-three".