340863 has 4 divisors (see below), whose sum is σ = 454488. Its totient is φ = 227240.

The previous prime is 340859. The next prime is 340877. The reversal of 340863 is 368043.

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

It is a cyclic number.

It is not a de Polignac number, because 340863 - 2² = 340859 is a prime.

It is a D-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 340863.

It is not an unprimeable number, because it can be changed into a prime (340063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56808 + ... + 56813.

It is an arithmetic number, because the mean of its divisors is an integer number (113622).

2³⁴⁰⁸⁶³ is an apocalyptic number.

340863 is a deficient number, since it is larger than the sum of its proper divisors (113625).

340863 is a wasteful number, since it uses less digits than its factorization.

340863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113624.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 340863 is about 583.8347368905. The cubic root of 340863 is about 69.8543228918.

The spelling of 340863 in words is "three hundred forty thousand, eight hundred sixty-three".