543939 has 16 divisors (see below), whose sum is σ = 808704. Its totient is φ = 322400.

The previous prime is 543929. The next prime is 543967. The reversal of 543939 is 939345.

It is a cyclic number.

It is not a de Polignac number, because 543939 - 2⁷ = 543811 is a prime.

It is a super-3 number, since 3×543939³ = 482805101353335057, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (543929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594 + ... + 1904.

It is an arithmetic number, because the mean of its divisors is an integer number (50544).

2⁵⁴³⁹³⁹ is an apocalyptic number.

543939 is a deficient number, since it is larger than the sum of its proper divisors (264765).

543939 is a wasteful number, since it uses less digits than its factorization.

543939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378.

The product of its digits is 14580, while the sum is 33.

The square root of 543939 is about 737.5222030556. The cubic root of 543939 is about 81.6300506870.

It can be divided in two parts, 54 and 3939, that added together give a palindrome (3993).

The spelling of 543939 in words is "five hundred forty-three thousand, nine hundred thirty-nine".