6642233 has 4 divisors (see below), whose sum is σ = 7153188. Its totient is φ = 6131280.

The previous prime is 6642211. The next prime is 6642281. The reversal of 6642233 is 3322466.

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 727609 + 5914624 = 853^2 + 2432^2 .

It is a cyclic number.

It is not a de Polignac number, because 6642233 - 2⁶ = 6642169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6642283) 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, 255458 + ... + 255483.

It is an arithmetic number, because the mean of its divisors is an integer number (1788297).

Almost surely, 2^6642233 is an apocalyptic number.

It is an amenable number.

6642233 is a deficient number, since it is larger than the sum of its proper divisors (510955).

6642233 is a wasteful number, since it uses less digits than its factorization.

6642233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510954.

The product of its digits is 5184, while the sum is 26.

The square root of 6642233 is about 2577.2529949541. The cubic root of 6642233 is about 187.9769946952.

Adding to 6642233 its reverse (3322466), we get a palindrome (9964699).

The spelling of 6642233 in words is "six million, six hundred forty-two thousand, two hundred thirty-three".