1385785683 has 6 divisors (see below), whose sum is σ = 2001690444. Its totient is φ = 923857116.

The previous prime is 1385785657. The next prime is 1385785693. The reversal of 1385785683 is 3865875831.

1385785683 is a `hidden beast` number, since 1 + 3 + 8 + 5 + 78 + 568 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1385785683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1385785613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76988085 + ... + 76988102.

It is an arithmetic number, because the mean of its divisors is an integer number (333615074).

Almost surely, 2^1385785683 is an apocalyptic number.

1385785683 is a deficient number, since it is larger than the sum of its proper divisors (615904761).

1385785683 is a wasteful number, since it uses less digits than its factorization.

1385785683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153976193 (or 153976190 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 1385785683 is about 37226.1424673575. The cubic root of 1385785683 is about 1114.8900085217.

The spelling of 1385785683 in words is "one billion, three hundred eighty-five million, seven hundred eighty-five thousand, six hundred eighty-three".