685248 has 56 divisors (see below), whose sum is σ = 1877568. Its totient is φ = 220416.

The previous prime is 685247. The next prime is 685249. The reversal of 685248 is 842586.

It is an interprime number because it is at equal distance from previous prime (685247) and next prime (685249).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 685248.

It is not an unprimeable number, because it can be changed into a prime (685247) 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, 8215 + ... + 8297.

It is an arithmetic number, because the mean of its divisors is an integer number (33528).

2⁶⁸⁵²⁴⁸ 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 685248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938784).

685248 is an abundant number, since it is smaller than the sum of its proper divisors (1192320).

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

685248 is a wasteful number, since it uses less digits than its factorization.

685248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 685248 is about 827.7970765834. The cubic root of 685248 is about 88.1622351578.

The spelling of 685248 in words is "six hundred eighty-five thousand, two hundred forty-eight".