6642343 has 8 divisors (see below), whose sum is σ = 7089200. Its totient is φ = 6205248.

The previous prime is 6642341. The next prime is 6642347. The reversal of 6642343 is 3432466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6642343 - 2¹ = 6642341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008 + ... + 3781.

It is an arithmetic number, because the mean of its divisors is an integer number (886150).

Almost surely, 2^6642343 is an apocalyptic number.

6642343 is a deficient number, since it is larger than the sum of its proper divisors (446857).

6642343 is a wasteful number, since it uses less digits than its factorization.

6642343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881.

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

The square root of 6642343 is about 2577.2743354172. The cubic root of 6642343 is about 187.9780323661.

It can be divided in two parts, 66423 and 43, that added together give a palindrome (66466).

The spelling of 6642343 in words is "six million, six hundred forty-two thousand, three hundred forty-three".