4263543 has 16 divisors (see below), whose sum is σ = 6649600. Its totient is φ = 2692440.

The previous prime is 4263541. The next prime is 4263557. The reversal of 4263543 is 3453624.

It is not a de Polignac number, because 4263543 - 2¹ = 4263541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 4⁷ + 2¹⁵ + 6² + 3⁵ + 5³ + 4¹¹ + 3⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4263541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3643 + ... + 4668.

It is an arithmetic number, because the mean of its divisors is an integer number (415600).

Almost surely, 2^4263543 is an apocalyptic number.

4263543 is a deficient number, since it is larger than the sum of its proper divisors (2386057).

4263543 is a wasteful number, since it uses less digits than its factorization.

4263543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339 (or 8333 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 4263543 is about 2064.8348602249. The cubic root of 4263543 is about 162.1524627780.

It can be divided in two parts, 426 and 3543, that added together give a square (3969 = 63²).

The spelling of 4263543 in words is "four million, two hundred sixty-three thousand, five hundred forty-three".