685088 has 24 divisors (see below), whose sum is σ = 1370880. Its totient is φ = 336960.

The previous prime is 685081. The next prime is 685093. The reversal of 685088 is 880586.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (685081) by changing a digit.

685088 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393 + ... + 2663.

It is an arithmetic number, because the mean of its divisors is an integer number (57120).

2⁶⁸⁵⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

685088 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

685088 is a wasteful number, since it uses less digits than its factorization.

685088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 685088 is about 827.7004288992. The cubic root of 685088 is about 88.1553728949.

The spelling of 685088 in words is "six hundred eighty-five thousand, eighty-eight".