685129496 has 8 divisors (see below), whose sum is σ = 1284617820. Its totient is φ = 342564744.

The previous prime is 685129483. The next prime is 685129513. The reversal of 685129496 is 694921586.

685129496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42820586 + ... + 42820601.

Almost surely, 2^685129496 is an apocalyptic number.

It is an amenable number.

685129496 is a deficient number, since it is larger than the sum of its proper divisors (599488324).

685129496 is a wasteful number, since it uses less digits than its factorization.

685129496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85641193 (or 85641189 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 685129496 is about 26174.9784336110. The cubic root of 685129496 is about 881.5715272539.

The spelling of 685129496 in words is "six hundred eighty-five million, one hundred twenty-nine thousand, four hundred ninety-six".