683747385 has 16 divisors (see below), whose sum is σ = 1095932160. Its totient is φ = 364019840.

The previous prime is 683747369. The next prime is 683747417. The reversal of 683747385 is 583747386.

It is not a de Polignac number, because 683747385 - 2⁴ = 683747369 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 31521 + ... + 48590.

It is an arithmetic number, because the mean of its divisors is an integer number (68495760).

Almost surely, 2^683747385 is an apocalyptic number.

It is an amenable number.

683747385 is a deficient number, since it is larger than the sum of its proper divisors (412184775).

683747385 is a wasteful number, since it uses less digits than its factorization.

683747385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80688.

The product of its digits is 3386880, while the sum is 51.

The square root of 683747385 is about 26148.5637272872. The cubic root of 683747385 is about 880.9783304233.

Subtracting from 683747385 its reverse (583747386), we obtain a palindrome (99999999).

The spelling of 683747385 in words is "six hundred eighty-three million, seven hundred forty-seven thousand, three hundred eighty-five".