2023564 has 12 divisors (see below), whose sum is σ = 3551688. Its totient is φ = 1008800.

The previous prime is 2023547. The next prime is 2023577. The reversal of 2023564 is 4653202.

It is a happy number.

It is a super-2 number, since 2×2023564² = 8189622524192, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 0 + 2¹¹ + 3⁹ + 5⁹ + 6⁶ + 4 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1599 + ... + 2569.

It is an arithmetic number, because the mean of its divisors is an integer number (295974).

2^2023564 is an apocalyptic number.

It is an amenable number.

2023564 is a deficient number, since it is larger than the sum of its proper divisors (1528124).

2023564 is a wasteful number, since it uses less digits than its factorization.

2023564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2023564 is about 1422.5202986249. The cubic root of 2023564 is about 126.4849873085.

Adding to 2023564 its reverse (4653202), we get a palindrome (6676766).

The spelling of 2023564 in words is "two million, twenty-three thousand, five hundred sixty-four".