543806 has 4 divisors (see below), whose sum is σ = 815712. Its totient is φ = 271902.

The previous prime is 543797. The next prime is 543811. The reversal of 543806 is 608345.

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

It is a congruent number.

It is an unprimeable number.

543806 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135950 + ... + 135953.

It is an arithmetic number, because the mean of its divisors is an integer number (203928).

2⁵⁴³⁸⁰⁶ is an apocalyptic number.

543806 is a deficient number, since it is larger than the sum of its proper divisors (271906).

543806 is a wasteful number, since it uses less digits than its factorization.

543806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271905.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 543806 is about 737.4320307662. The cubic root of 543806 is about 81.6233969497.

The spelling of 543806 in words is "five hundred forty-three thousand, eight hundred six".