543946 has 8 divisors (see below), whose sum is σ = 878724. Its totient is φ = 251040.

The previous prime is 543929. The next prime is 543967. The reversal of 543946 is 649345.

It can be written as a sum of positive squares in 2 ways, for example, as 540225 + 3721 = 735^2 + 61^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

543946 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 in 3 ways as a sum of consecutive naturals, for example, 10435 + ... + 10486.

2⁵⁴³⁹⁴⁶ is an apocalyptic number.

543946 is a deficient number, since it is larger than the sum of its proper divisors (334778).

543946 is a wasteful number, since it uses less digits than its factorization.

543946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20936.

The product of its digits is 12960, while the sum is 31.

The square root of 543946 is about 737.5269486602. The cubic root of 543946 is about 81.6304008537.

The spelling of 543946 in words is "five hundred forty-three thousand, nine hundred forty-six".