4263643 has 4 divisors (see below), whose sum is σ = 4279648. Its totient is φ = 4247640.

The previous prime is 4263641. The next prime is 4263659. The reversal of 4263643 is 3463624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4263643 - 2¹ = 4263641 is a prime.

It is a super-3 number, since 3×4263643³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

4263643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4263641) 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 3 ways as a sum of consecutive naturals, for example, 7596 + ... + 8137.

It is an arithmetic number, because the mean of its divisors is an integer number (1069912).

Almost surely, 2^4263643 is an apocalyptic number.

4263643 is a deficient number, since it is larger than the sum of its proper divisors (16005).

4263643 is a wasteful number, since it uses less digits than its factorization.

4263643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16004.

The product of its digits is 10368, while the sum is 28.

The square root of 4263643 is about 2064.8590750945. The cubic root of 4263643 is about 162.1537305123.

The spelling of 4263643 in words is "four million, two hundred sixty-three thousand, six hundred forty-three".