340853 has 4 divisors (see below), whose sum is σ = 342348. Its totient is φ = 339360.

The previous prime is 340849. The next prime is 340859. The reversal of 340853 is 358043.

Added to its reverse (358043) it gives a square (698896 = 836²).

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103684 + 237169 = 322^2 + 487^2 .

It is a cyclic number.

It is not a de Polignac number, because 340853 - 2² = 340849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340853.

It is not an unprimeable number, because it can be changed into a prime (340859) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 326 + ... + 887.

It is an arithmetic number, because the mean of its divisors is an integer number (85587).

2³⁴⁰⁸⁵³ is an apocalyptic number.

It is an amenable number.

340853 is a deficient number, since it is larger than the sum of its proper divisors (1495).

340853 is a wasteful number, since it uses less digits than its factorization.

340853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 340853 is about 583.8261727604. The cubic root of 340853 is about 69.8536397727.

Adding to 340853 its reverse (358043), we get a palindrome (698896).

The spelling of 340853 in words is "three hundred forty thousand, eight hundred fifty-three".