6669517 has 8 divisors (see below), whose sum is σ = 7007616. Its totient is φ = 6335472.

The previous prime is 6669503. The next prime is 6669521. The reversal of 6669517 is 7159666.

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

It is a cyclic number.

It is not a de Polignac number, because 6669517 - 2¹⁹ = 6145229 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 6669517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2688 + ... + 4534.

It is an arithmetic number, because the mean of its divisors is an integer number (875952).

Almost surely, 2^6669517 is an apocalyptic number.

It is an amenable number.

6669517 is a deficient number, since it is larger than the sum of its proper divisors (338099).

6669517 is a wasteful number, since it uses less digits than its factorization.

6669517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027.

The product of its digits is 68040, while the sum is 40.

The square root of 6669517 is about 2582.5408031627. The cubic root of 6669517 is about 188.2340246180.

The spelling of 6669517 in words is "six million, six hundred sixty-nine thousand, five hundred seventeen".