685348056 has 24 divisors (see below), whose sum is σ = 1856151180. Its totient is φ = 228449328.

The previous prime is 685348049. The next prime is 685348067. The reversal of 685348056 is 650843586.

685348056 is a `hidden beast` number, since 68 + 534 + 8 + 0 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4759290 + ... + 4759433.

Almost surely, 2^685348056 is an apocalyptic number.

It is an amenable number.

685348056 is an abundant number, since it is smaller than the sum of its proper divisors (1170803124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685348056 is a wasteful number, since it uses less digits than its factorization.

685348056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518735 (or 9518728 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 685348056 is about 26179.1530802660. The cubic root of 685348056 is about 881.6652593097.

The spelling of 685348056 in words is "six hundred eighty-five million, three hundred forty-eight thousand, fifty-six".