2023566 has 8 divisors (see below), whose sum is σ = 4047144. Its totient is φ = 674520.

The previous prime is 2023547. The next prime is 2023577. The reversal of 2023566 is 6653202.

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

2023566 is an admirable number.

It is a d-powerful number, because it can be written as 2¹¹ + 0 + 2¹¹ + 3⁹ + 5⁹ + 6 + 6⁶ .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 168625 + ... + 168636.

It is an arithmetic number, because the mean of its divisors is an integer number (505893).

2^2023566 is an apocalyptic number.

2023566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2023566 is a wasteful number, since it uses less digits than its factorization.

2023566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337266.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2023566 is about 1422.5210016024. The cubic root of 2023566 is about 126.4850289792.

Adding to 2023566 its reverse (6653202), we get a palindrome (8676768).

It can be divided in two parts, 20235 and 66, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 2023566 in words is "two million, twenty-three thousand, five hundred sixty-six".