343823 has 2 divisors, whose sum is σ = 343824. Its totient is φ = 343822.

The previous prime is 343817. The next prime is 343829. The reversal of 343823 is 328343.

It is a balanced prime because it is at equal distance from previous prime (343817) and next prime (343829).

It is an emirp because it is prime and its reverse (328343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343823 - 2¹⁰ = 342799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171911 + 171912.

It is an arithmetic number, because the mean of its divisors is an integer number (171912).

2³⁴³⁸²³ is an apocalyptic number.

343823 is a deficient number, since it is larger than the sum of its proper divisors (1).

343823 is an equidigital number, since it uses as much as digits as its factorization.

343823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 343823 is about 586.3642212823. The cubic root of 343823 is about 70.0559416759.

The spelling of 343823 in words is "three hundred forty-three thousand, eight hundred twenty-three".