684275 has 12 divisors (see below), whose sum is σ = 860064. Its totient is φ = 540000.

The previous prime is 684269. The next prime is 684287. The reversal of 684275 is 572486.

It is not a de Polignac number, because 684275 - 2¹⁰ = 683251 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 684275.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2390 + ... + 2660.

It is an arithmetic number, because the mean of its divisors is an integer number (71672).

2⁶⁸⁴²⁷⁵ is an apocalyptic number.

684275 is a deficient number, since it is larger than the sum of its proper divisors (175789).

684275 is a wasteful number, since it uses less digits than its factorization.

684275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 377 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 684275 is about 827.2091633922. The cubic root of 684275 is about 88.1204875043.

It can be divided in two parts, 684 and 275, that added together give a palindrome (959).

The spelling of 684275 in words is "six hundred eighty-four thousand, two hundred seventy-five".