543881 has 16 divisors (see below), whose sum is σ = 653184. Its totient is φ = 447744.

The previous prime is 543877. The next prime is 543883. The reversal of 543881 is 188345.

It is a cyclic number.

It is not a de Polignac number, because 543881 - 2² = 543877 is a prime.

It is a super-2 number, since 2×543881² = 591613084322, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (3840) is a multiple of the sum of its prime divisors (160).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 543881.

It is not an unprimeable number, because it can be changed into a prime (543883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5030 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2⁵⁴³⁸⁸¹ is an apocalyptic number.

It is an amenable number.

543881 is a deficient number, since it is larger than the sum of its proper divisors (109303).

543881 is a wasteful number, since it uses less digits than its factorization.

543881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its digits is 3840, while the sum is 29.

The square root of 543881 is about 737.4828811573. The cubic root of 543881 is about 81.6271491906.

The spelling of 543881 in words is "five hundred forty-three thousand, eight hundred eighty-one".