685110393 has 20 divisors (see below), whose sum is σ = 1116477648. Its totient is φ = 415217880.

The previous prime is 685110373. The next prime is 685110397. The reversal of 685110393 is 393011586.

It is a happy number.

It is not a de Polignac number, because 685110393 - 2⁹ = 685109881 is a prime.

It is a super-3 number, since 3×685110393³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (685110397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 383571 + ... + 385352.

Almost surely, 2^685110393 is an apocalyptic number.

It is an amenable number.

685110393 is a deficient number, since it is larger than the sum of its proper divisors (431367255).

685110393 is a wasteful number, since it uses less digits than its factorization.

685110393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768946 (or 768937 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 685110393 is about 26174.6135215021. The cubic root of 685110393 is about 881.5633337579.

The spelling of 685110393 in words is "six hundred eighty-five million, one hundred ten thousand, three hundred ninety-three".