6699443 has 4 divisors (see below), whose sum is σ = 6855288. Its totient is φ = 6543600.

The previous prime is 6699439. The next prime is 6699481. The reversal of 6699443 is 3449966.

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

It is a cyclic number.

It is not a de Polignac number, because 6699443 - 2² = 6699439 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 6⁸ + 9⁴ + 9⁴ + 4⁵ + 4¹¹ + 3¹² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6699443.

It is not an unprimeable number, because it can be changed into a prime (6699643) 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 3 ways as a sum of consecutive naturals, for example, 77858 + ... + 77943.

It is an arithmetic number, because the mean of its divisors is an integer number (1713822).

Almost surely, 2^6699443 is an apocalyptic number.

6699443 is a deficient number, since it is larger than the sum of its proper divisors (155845).

6699443 is a wasteful number, since it uses less digits than its factorization.

6699443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155844.

The product of its digits is 139968, while the sum is 41.

The square root of 6699443 is about 2588.3282249359. The cubic root of 6699443 is about 188.5151387861.

The spelling of 6699443 in words is "six million, six hundred ninety-nine thousand, four hundred forty-three".