543667 has 4 divisors (see below), whose sum is σ = 548856. Its totient is φ = 538480.

The previous prime is 543661. The next prime is 543671. The reversal of 543667 is 766345.

543667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766345 = 5 ⋅153269.

It is a cyclic number.

It is not a de Polignac number, because 543667 - 2³ = 543659 is a prime.

It is a d-powerful number, because it can be written as 5 + 4⁶ + 6 + 3¹² + 6⁵ + 7³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543661) 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, 2434 + ... + 2647.

It is an arithmetic number, because the mean of its divisors is an integer number (137214).

2⁵⁴³⁶⁶⁷ is an apocalyptic number.

543667 is a deficient number, since it is larger than the sum of its proper divisors (5189).

543667 is a wasteful number, since it uses less digits than its factorization.

543667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188.

The product of its digits is 15120, while the sum is 31.

The square root of 543667 is about 737.3377787690. The cubic root of 543667 is about 81.6164418842.

It can be divided in two parts, 54 and 3667, that added together give a square (3721 = 61²).

The spelling of 543667 in words is "five hundred forty-three thousand, six hundred sixty-seven".