685076 has 24 divisors (see below), whose sum is σ = 1404480. Its totient is φ = 286272.

The previous prime is 685073. The next prime is 685081. The reversal of 685076 is 670586.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685073) 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, 920 + ... + 1488.

It is an arithmetic number, because the mean of its divisors is an integer number (58520).

2⁶⁸⁵⁰⁷⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702240).

685076 is an abundant number, since it is smaller than the sum of its proper divisors (719404).

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

685076 is a wasteful number, since it uses less digits than its factorization.

685076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 685076 is about 827.6931798680. The cubic root of 685076 is about 88.1548581821.

The spelling of 685076 in words is "six hundred eighty-five thousand, seventy-six".