6999717 has 4 divisors (see below), whose sum is σ = 9332960. Its totient is φ = 4666476.

The previous prime is 6999703. The next prime is 6999721. The reversal of 6999717 is 7179996.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6999717 - 2⁷ = 6999589 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6999017) 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, 1166617 + ... + 1166622.

It is an arithmetic number, because the mean of its divisors is an integer number (2333240).

Almost surely, 2^6999717 is an apocalyptic number.

It is an amenable number.

6999717 is a deficient number, since it is larger than the sum of its proper divisors (2333243).

6999717 is a wasteful number, since it uses less digits than its factorization.

6999717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333242.

The product of its digits is 214326, while the sum is 48.

The square root of 6999717 is about 2645.6978285511. The cubic root of 6999717 is about 191.2905403400.

The spelling of 6999717 in words is "six million, nine hundred ninety-nine thousand, seven hundred seventeen".