340859 has 2 divisors, whose sum is σ = 340860. Its totient is φ = 340858.

The previous prime is 340849. The next prime is 340877. The reversal of 340859 is 958043.

It is a weak prime.

It is an emirp because it is prime and its reverse (958043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340859 - 2¹⁶ = 275323 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (340819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170429 + 170430.

It is an arithmetic number, because the mean of its divisors is an integer number (170430).

2³⁴⁰⁸⁵⁹ is an apocalyptic number.

340859 is a deficient number, since it is larger than the sum of its proper divisors (1).

340859 is an equidigital number, since it uses as much as digits as its factorization.

340859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 340859 is about 583.8313112535. The cubic root of 340859 is about 69.8540496458.

The spelling of 340859 in words is "three hundred forty thousand, eight hundred fifty-nine".