343803 has 4 divisors (see below), whose sum is σ = 458408. Its totient is φ = 229200.

The previous prime is 343801. The next prime is 343813. The reversal of 343803 is 308343.

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

It is not a de Polignac number, because 343803 - 2¹ = 343801 is a prime.

It is a D-number.

It is a Duffinian number.

343803 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 343803.

It is not an unprimeable number, because it can be changed into a prime (343801) 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, 57298 + ... + 57303.

It is an arithmetic number, because the mean of its divisors is an integer number (114602).

2³⁴³⁸⁰³ is an apocalyptic number.

343803 is a deficient number, since it is larger than the sum of its proper divisors (114605).

343803 is a wasteful number, since it uses less digits than its factorization.

343803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114604.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 343803 is about 586.3471667877. The cubic root of 343803 is about 70.0545832774.

The spelling of 343803 in words is "three hundred forty-three thousand, eight hundred three".