4231643 has 8 divisors (see below), whose sum is σ = 4587408. Its totient is φ = 3880224.

The previous prime is 4231637. The next prime is 4231663. The reversal of 4231643 is 3461324.

It is a happy number.

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 4231643 - 2⁴ = 4231627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4231603) 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, 1121 + ... + 3117.

It is an arithmetic number, because the mean of its divisors is an integer number (573426).

Almost surely, 2^4231643 is an apocalyptic number.

4231643 is a deficient number, since it is larger than the sum of its proper divisors (355765).

4231643 is a wasteful number, since it uses less digits than its factorization.

4231643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173.

The product of its digits is 1728, while the sum is 23.

The square root of 4231643 is about 2057.0957683103. The cubic root of 4231643 is about 161.7470395460.

Adding to 4231643 its reverse (3461324), we get a palindrome (7692967).

The spelling of 4231643 in words is "four million, two hundred thirty-one thousand, six hundred forty-three".