2006653 has 4 divisors (see below), whose sum is σ = 2189088. Its totient is φ = 1824220.

The previous prime is 2006651. The next prime is 2006657. The reversal of 2006653 is 3566002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2006653 - 2¹ = 2006651 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006651) 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, 91201 + ... + 91222.

It is an arithmetic number, because the mean of its divisors is an integer number (547272).

2^2006653 is an apocalyptic number.

It is an amenable number.

2006653 is a deficient number, since it is larger than the sum of its proper divisors (182435).

2006653 is a wasteful number, since it uses less digits than its factorization.

2006653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182434.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2006653 is about 1416.5638001869. The cubic root of 2006653 is about 126.1316546122.

The spelling of 2006653 in words is "two million, six thousand, six hundred fifty-three".