6443233 has 4 divisors (see below), whose sum is σ = 6450948. Its totient is φ = 6435520.

The previous prime is 6443231. The next prime is 6443287. The reversal of 6443233 is 3323446.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3972049 + 2471184 = 1993^2 + 1572^2 .

It is a cyclic number.

It is not a de Polignac number, because 6443233 - 2¹ = 6443231 is a prime.

It is a d-powerful number, because it can be written as 6² + 4⁴ + 4⁸ + 3⁴ + 2⁵ + 3¹³ + 3¹⁴ .

It is a Duffinian number.

6443233 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6443198 and 6443207.

It is not an unprimeable number, because it can be changed into a prime (6443231) 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, 2428 + ... + 4333.

It is an arithmetic number, because the mean of its divisors is an integer number (1612737).

Almost surely, 2^6443233 is an apocalyptic number.

It is an amenable number.

6443233 is a deficient number, since it is larger than the sum of its proper divisors (7715).

6443233 is an equidigital number, since it uses as much as digits as its factorization.

6443233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714.

The product of its digits is 5184, while the sum is 25.

The square root of 6443233 is about 2538.3524184006. The cubic root of 6443233 is about 186.0806776074.

Adding to 6443233 its reverse (3323446), we get a palindrome (9766679).

The spelling of 6443233 in words is "six million, four hundred forty-three thousand, two hundred thirty-three".