685494196 has 24 divisors (see below), whose sum is σ = 1311158016. Its totient is φ = 312178560.

The previous prime is 685494193. The next prime is 685494197. The reversal of 685494196 is 691494586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685494191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160486 + ... + 164701.

It is an arithmetic number, because the mean of its divisors is an integer number (54631584).

Almost surely, 2^685494196 is an apocalyptic number.

It is an amenable number.

685494196 is a deficient number, since it is larger than the sum of its proper divisors (625663820).

685494196 is a wasteful number, since it uses less digits than its factorization.

685494196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325239 (or 325237 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The square root of 685494196 is about 26181.9440836619. The cubic root of 685494196 is about 881.7279220705.

The spelling of 685494196 in words is "six hundred eighty-five million, four hundred ninety-four thousand, one hundred ninety-six".