685027756 has 24 divisors (see below), whose sum is σ = 1395908640. Its totient is φ = 288043392.

The previous prime is 685027741. The next prime is 685027769. The reversal of 685027756 is 657720586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229321 + ... + 232288.

It is an arithmetic number, because the mean of its divisors is an integer number (58162860).

Almost surely, 2^685027756 is an apocalyptic number.

It is an amenable number.

685027756 is an abundant number, since it is smaller than the sum of its proper divisors (710880884).

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

685027756 is a wasteful number, since it uses less digits than its factorization.

685027756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461673 (or 461671 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The square root of 685027756 is about 26173.0349023570. The cubic root of 685027756 is about 881.5278880452.

The spelling of 685027756 in words is "six hundred eighty-five million, twenty-seven thousand, seven hundred fifty-six".