684293 has 2 divisors, whose sum is σ = 684294. Its totient is φ = 684292.

The previous prime is 684289. The next prime is 684311. The reversal of 684293 is 392486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368449 + 315844 = 607^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 684293 - 2² = 684289 is a prime.

It is a Chen prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (684493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342146 + 342147.

It is an arithmetic number, because the mean of its divisors is an integer number (342147).

2⁶⁸⁴²⁹³ is an apocalyptic number.

It is an amenable number.

684293 is a deficient number, since it is larger than the sum of its proper divisors (1).

684293 is an equidigital number, since it uses as much as digits as its factorization.

684293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 684293 is about 827.2200432775. The cubic root of 684293 is about 88.1212601736.

The spelling of 684293 in words is "six hundred eighty-four thousand, two hundred ninety-three".