345863 has 4 divisors (see below), whose sum is σ = 395280. Its totient is φ = 296448.

The previous prime is 345853. The next prime is 345869. The reversal of 345863 is 368543.

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 345863 - 2⁸ = 345607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24698 + ... + 24711.

It is an arithmetic number, because the mean of its divisors is an integer number (98820).

2³⁴⁵⁸⁶³ is an apocalyptic number.

345863 is a deficient number, since it is larger than the sum of its proper divisors (49417).

345863 is an equidigital number, since it uses as much as digits as its factorization.

345863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49416.

The product of its digits is 8640, while the sum is 29.

The square root of 345863 is about 588.1011817706. The cubic root of 345863 is about 70.1942225151.

The spelling of 345863 in words is "three hundred forty-five thousand, eight hundred sixty-three".