1685783914 has 16 divisors (see below), whose sum is σ = 2556318600. Its totient is φ = 833725440.

The previous prime is 1685783893. The next prime is 1685783989. The reversal of 1685783914 is 4193875861.

It can be written as a sum of positive squares in 4 ways, for example, as 1653804889 + 31979025 = 40667^2 + 5655^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60082 + ... + 83554.

Almost surely, 2^1685783914 is an apocalyptic number.

1685783914 is a deficient number, since it is larger than the sum of its proper divisors (870534686).

1685783914 is a wasteful number, since it uses less digits than its factorization.

1685783914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23865.

The product of its digits is 1451520, while the sum is 52.

The square root of 1685783914 is about 41058.2989662261. The cubic root of 1685783914 is about 1190.1470792480.

The spelling of 1685783914 in words is "one billion, six hundred eighty-five million, seven hundred eighty-three thousand, nine hundred fourteen".