4066543 has 8 divisors (see below), whose sum is σ = 4423328. Its totient is φ = 3716064.

The previous prime is 4066537. The next prime is 4066567. The reversal of 4066543 is 3456604.

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

It is a cyclic number.

It is not a de Polignac number, because 4066543 - 2⁹ = 4066031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180 + ... + 2857.

It is an arithmetic number, because the mean of its divisors is an integer number (552916).

Almost surely, 2^4066543 is an apocalyptic number.

4066543 is a deficient number, since it is larger than the sum of its proper divisors (356785).

4066543 is a wasteful number, since it uses less digits than its factorization.

4066543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 4066543 is about 2016.5671325299. The cubic root of 4066543 is about 159.6155221575.

The spelling of 4066543 in words is "four million, sixty-six thousand, five hundred forty-three".