682605 has 48 divisors (see below), whose sum is σ = 1482624. Its totient is φ = 282240.

The previous prime is 682597. The next prime is 682607. The reversal of 682605 is 506286.

682605 = T₆ + T₇ + ... + T₁₅₉.

It is not a de Polignac number, because 682605 - 2³ = 682597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3367 + ... + 3563.

It is an arithmetic number, because the mean of its divisors is an integer number (30888).

2⁶⁸²⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

682605 is an abundant number, since it is smaller than the sum of its proper divisors (800019).

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

682605 is a wasteful number, since it uses less digits than its factorization.

682605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 682605 is about 826.1991285398. The cubic root of 682605 is about 88.0487419370.

It can be divided in two parts, 68260 and 5, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 682605 in words is "six hundred eighty-two thousand, six hundred five".