2086603 has 4 divisors (see below), whose sum is σ = 2098440. Its totient is φ = 2074768.

The previous prime is 2086589. The next prime is 2086621. The reversal of 2086603 is 3066802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3066802 = 2 ⋅1533401.

It is a cyclic number.

It is not a de Polignac number, because 2086603 - 2⁵ = 2086571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086673) 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, 5650 + ... + 6007.

It is an arithmetic number, because the mean of its divisors is an integer number (524610).

2^2086603 is an apocalyptic number.

2086603 is a deficient number, since it is larger than the sum of its proper divisors (11837).

2086603 is a wasteful number, since it uses less digits than its factorization.

2086603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11836.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2086603 is about 1444.5078746757. The cubic root of 2086603 is about 127.7850191793.

The spelling of 2086603 in words is "two million, eighty-six thousand, six hundred three".