2206623 has 8 divisors (see below), whose sum is σ = 2958336. Its totient is φ = 1463000.

The previous prime is 2206621. The next prime is 2206627. The reversal of 2206623 is 3266022.

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

It is a cyclic number.

It is not a de Polignac number, because 2206623 - 2¹ = 2206621 is a prime.

It is a super-3 number, since 3×2206623³ = 32233367261290579101, which contains 333 as substring.

It is an Ulam number.

2206623 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2206623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1353 + ... + 2498.

It is an arithmetic number, because the mean of its divisors is an integer number (369792).

2^2206623 is an apocalyptic number.

2206623 is a deficient number, since it is larger than the sum of its proper divisors (751713).

2206623 is a wasteful number, since it uses less digits than its factorization.

2206623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2206623 is about 1485.4706324933. The cubic root of 2206623 is about 130.1895263176.

The spelling of 2206623 in words is "two million, two hundred six thousand, six hundred twenty-three".