2206813 has 12 divisors (see below), whose sum is σ = 2657340. Its totient is φ = 1825152.

The previous prime is 2206811. The next prime is 2206817. The reversal of 2206813 is 3186022.

2206813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 636804 + 1570009 = 798^2 + 1253^2 .

It is not a de Polignac number, because 2206813 - 2¹ = 2206811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 645 + ... + 2197.

It is an arithmetic number, because the mean of its divisors is an integer number (221445).

2^2206813 is an apocalyptic number.

It is an amenable number.

2206813 is a deficient number, since it is larger than the sum of its proper divisors (450527).

2206813 is a wasteful number, since it uses less digits than its factorization.

2206813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2206813 is about 1485.5345839125. The cubic root of 2206813 is about 130.1932628417.

The spelling of 2206813 in words is "two million, two hundred six thousand, eight hundred thirteen".