10668517 has 4 divisors (see below), whose sum is σ = 10689516. Its totient is φ = 10647520.

The previous prime is 10668421. The next prime is 10668521. The reversal of 10668517 is 71586601.

10668517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71586601 = 37 ⋅1934773.

It can be written as a sum of positive squares in 2 ways, for example, as 5788836 + 4879681 = 2406^2 + 2209^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10668517 is a prime.

It is a super-2 number, since 2×10668517² = 227634509958578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10668587) 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, 9718 + ... + 10759.

It is an arithmetic number, because the mean of its divisors is an integer number (2672379).

Almost surely, 2^10668517 is an apocalyptic number.

It is an amenable number.

10668517 is a deficient number, since it is larger than the sum of its proper divisors (20999).

10668517 is an equidigital number, since it uses as much as digits as its factorization.

10668517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20998.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 10668517 is about 3266.2695847097. The cubic root of 10668517 is about 220.1412109947.

The spelling of 10668517 in words is "ten million, six hundred sixty-eight thousand, five hundred seventeen".