685536814 has 16 divisors (see below), whose sum is σ = 1056801888. Its totient is φ = 333281952.

The previous prime is 685536811. The next prime is 685536823. The reversal of 685536814 is 418635586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685536811) 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, 187407 + ... + 191029.

It is an arithmetic number, because the mean of its divisors is an integer number (66050118).

Almost surely, 2^685536814 is an apocalyptic number.

685536814 is a deficient number, since it is larger than the sum of its proper divisors (371265074).

685536814 is a wasteful number, since it uses less digits than its factorization.

685536814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219.

The product of its digits is 691200, while the sum is 46.

The square root of 685536814 is about 26182.7579525152. The cubic root of 685536814 is about 881.7461943875.

The spelling of 685536814 in words is "six hundred eighty-five million, five hundred thirty-six thousand, eight hundred fourteen".