682397 has 8 divisors (see below), whose sum is σ = 730296. Its totient is φ = 635392.

The previous prime is 682373. The next prime is 682411. The reversal of 682397 is 793286.

It can be written as a sum of positive squares in 4 ways, for example, as 391876 + 290521 = 626^2 + 539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 682397 - 2⁶ = 682333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682307) 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 7 ways as a sum of consecutive naturals, for example, 2183 + ... + 2475.

It is an arithmetic number, because the mean of its divisors is an integer number (91287).

2⁶⁸²³⁹⁷ is an apocalyptic number.

It is an amenable number.

682397 is a deficient number, since it is larger than the sum of its proper divisors (47899).

682397 is a wasteful number, since it uses less digits than its factorization.

682397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447.

The product of its digits is 18144, while the sum is 35.

The square root of 682397 is about 826.0732413049. The cubic root of 682397 is about 88.0397977702.

Subtracting 682397 from its reverse (793286), we obtain a square (110889 = 333²).

The spelling of 682397 in words is "six hundred eighty-two thousand, three hundred ninety-seven".