2041663 has 4 divisors (see below), whose sum is σ = 2198728. Its totient is φ = 1884600.

The previous prime is 2041661. The next prime is 2041681. The reversal of 2041663 is 3661402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3661402 = 2 ⋅1830701.

It is a cyclic number.

It is not a de Polignac number, because 2041663 - 2¹ = 2041661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041661) 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, 78513 + ... + 78538.

It is an arithmetic number, because the mean of its divisors is an integer number (549682).

2^2041663 is an apocalyptic number.

2041663 is a deficient number, since it is larger than the sum of its proper divisors (157065).

2041663 is a wasteful number, since it uses less digits than its factorization.

2041663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157064.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2041663 is about 1428.8677335569. The cubic root of 2041663 is about 126.8609675729.

It can be divided in two parts, 2041 and 663, that added together give a square (2704 = 52²).

The spelling of 2041663 in words is "two million, forty-one thousand, six hundred sixty-three".