2666017 has 4 divisors (see below), whose sum is σ = 2683156. Its totient is φ = 2648880.

The previous prime is 2665973. The next prime is 2666021. The reversal of 2666017 is 7106662.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1893376 + 772641 = 1376^2 + 879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2666017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666087) 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, 8334 + ... + 8647.

It is an arithmetic number, because the mean of its divisors is an integer number (670789).

2^2666017 is an apocalyptic number.

It is an amenable number.

2666017 is a deficient number, since it is larger than the sum of its proper divisors (17139).

2666017 is a wasteful number, since it uses less digits than its factorization.

2666017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17138.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2666017 is about 1632.7942307590. The cubic root of 2666017 is about 138.6609926128.

The spelling of 2666017 in words is "two million, six hundred sixty-six thousand, seventeen".