682665 has 16 divisors (see below), whose sum is σ = 1109376. Its totient is φ = 358400.

The previous prime is 682657. The next prime is 682673. The reversal of 682665 is 566286.

682665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (682657) and next prime (682673).

It is not a de Polignac number, because 682665 - 2³ = 682657 is a prime.

It is a d-powerful number, because it can be written as 6³ + 8⁴ + 6⁵ + 2⁴ + 6⁷ + 5⁸ .

Its product of digits (17280) is a multiple of the sum of its prime divisors (720).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745 + ... + 1385.

It is an arithmetic number, because the mean of its divisors is an integer number (69336).

2⁶⁸²⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

682665 is a deficient number, since it is larger than the sum of its proper divisors (426711).

682665 is a wasteful number, since it uses less digits than its factorization.

682665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its digits is 17280, while the sum is 33.

The square root of 682665 is about 826.2354386009. The cubic root of 682665 is about 88.0513216474.

The spelling of 682665 in words is "six hundred eighty-two thousand, six hundred sixty-five".