682815 has 24 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 311808.

The previous prime is 682811. The next prime is 682819. The reversal of 682815 is 518286.

It is an interprime number because it is at equal distance from previous prime (682811) and next prime (682819).

It is not a de Polignac number, because 682815 - 2² = 682811 is a prime.

682815 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271 + ... + 1199.

It is an arithmetic number, because the mean of its divisors is an integer number (53010).

2⁶⁸²⁸¹⁵ is an apocalyptic number.

682815 is a deficient number, since it is larger than the sum of its proper divisors (589425).

682815 is a wasteful number, since it uses less digits than its factorization.

682815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 944 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 682815 is about 826.3262067731. The cubic root of 682815 is about 88.0577702623.

It can be divided in two parts, 68281 and 5, that added together give a palindrome (68286).

The spelling of 682815 in words is "six hundred eighty-two thousand, eight hundred fifteen".