2065803 has 8 divisors (see below), whose sum is σ = 2764608. Its totient is φ = 1372104.

The previous prime is 2065801. The next prime is 2065807. The reversal of 2065803 is 3085602.

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

It is not a de Polignac number, because 2065803 - 2¹ = 2065801 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

2065803 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065801) 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, 201 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (345576).

2^2065803 is an apocalyptic number.

2065803 is a deficient number, since it is larger than the sum of its proper divisors (698805).

2065803 is a wasteful number, since it uses less digits than its factorization.

2065803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2065803 is about 1437.2901585971. The cubic root of 2065803 is about 127.3589982958.

The spelling of 2065803 in words is "two million, sixty-five thousand, eight hundred three".