6999343 has 4 divisors (see below), whose sum is σ = 7537768. Its totient is φ = 6460920.

The previous prime is 6999341. The next prime is 6999361. The reversal of 6999343 is 3439996.

It is a happy number.

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 6999343 - 2¹ = 6999341 is a prime.

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 6999343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6999341) 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, 269193 + ... + 269218.

It is an arithmetic number, because the mean of its divisors is an integer number (1884442).

Almost surely, 2^6999343 is an apocalyptic number.

6999343 is a deficient number, since it is larger than the sum of its proper divisors (538425).

6999343 is a wasteful number, since it uses less digits than its factorization.

6999343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538424.

The product of its digits is 157464, while the sum is 43.

The square root of 6999343 is about 2645.6271468217. The cubic root of 6999343 is about 191.2871333481.

The spelling of 6999343 in words is "six million, nine hundred ninety-nine thousand, three hundred forty-three".