685476 has 48 divisors (see below), whose sum is σ = 1942080. Its totient is φ = 207360.

The previous prime is 685471. The next prime is 685493. The reversal of 685476 is 674586.

It is a happy number.

685476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 685476.

It is not an unprimeable number, because it can be changed into a prime (685471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (40460).

2⁶⁸⁵⁴⁷⁶ is an apocalyptic number.

685476 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971040).

685476 is an abundant number, since it is smaller than the sum of its proper divisors (1256604).

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

685476 is a wasteful number, since it uses less digits than its factorization.

685476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 593 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 685476 is about 827.9347800401. The cubic root of 685476 is about 88.1720120369.

The spelling of 685476 in words is "six hundred eighty-five thousand, four hundred seventy-six".