684313 has 8 divisors (see below), whose sum is σ = 809280. Its totient is φ = 566160.

The previous prime is 684311. The next prime is 684329. The reversal of 684313 is 313486.

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

It is not a de Polignac number, because 684313 - 2¹ = 684311 is a prime.

It is a Duffinian number.

684313 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (684311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1483 + ... + 1888.

It is an arithmetic number, because the mean of its divisors is an integer number (101160).

2⁶⁸⁴³¹³ is an apocalyptic number.

It is an amenable number.

684313 is a deficient number, since it is larger than the sum of its proper divisors (124967).

684313 is a wasteful number, since it uses less digits than its factorization.

684313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407.

The product of its digits is 1728, while the sum is 25.

The square root of 684313 is about 827.2321318711. The cubic root of 684313 is about 88.1221186792.

Adding to 684313 its reverse (313486), we get a palindrome (997799).

The spelling of 684313 in words is "six hundred eighty-four thousand, three hundred thirteen".