6664343 has 12 divisors (see below), whose sum is σ = 7796232. Its totient is φ = 5680080.

The previous prime is 6664321. The next prime is 6664351. The reversal of 6664343 is 3434666.

It is not a de Polignac number, because 6664343 - 2⁶ = 6664279 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 (6664543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13328 + ... + 13818.

It is an arithmetic number, because the mean of its divisors is an integer number (649686).

Almost surely, 2^6664343 is an apocalyptic number.

6664343 is a deficient number, since it is larger than the sum of its proper divisors (1131889).

6664343 is a wasteful number, since it uses less digits than its factorization.

6664343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 775 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

The square root of 6664343 is about 2581.5388821399. The cubic root of 6664343 is about 188.1853366947.

It can be divided in two parts, 6664 and 343, that added together give a palindrome (7007).

The spelling of 6664343 in words is "six million, six hundred sixty-four thousand, three hundred forty-three".