4201643 has 4 divisors (see below), whose sum is σ = 4221768. Its totient is φ = 4181520.

The previous prime is 4201633. The next prime is 4201649. The reversal of 4201643 is 3461024.

It is a happy number.

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 4201643 - 2⁶ = 4201579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4201649) 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, 9746 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (1055442).

Almost surely, 2^4201643 is an apocalyptic number.

4201643 is a deficient number, since it is larger than the sum of its proper divisors (20125).

4201643 is a wasteful number, since it uses less digits than its factorization.

4201643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20124.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4201643 is about 2049.7909649523. The cubic root of 4201643 is about 161.3639004570.

Adding to 4201643 its reverse (3461024), we get a palindrome (7662667).

The spelling of 4201643 in words is "four million, two hundred one thousand, six hundred forty-three".