685448834 has 8 divisors (see below), whose sum is σ = 1175055168. Its totient is φ = 293763780.

The previous prime is 685448833. The next prime is 685448837. The reversal of 685448834 is 438844586.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (685448833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24480302 + ... + 24480329.

It is an arithmetic number, because the mean of its divisors is an integer number (146881896).

Almost surely, 2^685448834 is an apocalyptic number.

685448834 is a deficient number, since it is larger than the sum of its proper divisors (489606334).

685448834 is a wasteful number, since it uses less digits than its factorization.

685448834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48960640.

The product of its digits is 2949120, while the sum is 50.

The square root of 685448834 is about 26181.0777853014. The cubic root of 685448834 is about 881.7084724410.

The spelling of 685448834 in words is "six hundred eighty-five million, four hundred forty-eight thousand, eight hundred thirty-four".