923563 has 4 divisors (see below), whose sum is σ = 955440. Its totient is φ = 891688.

The previous prime is 923561. The next prime is 923567. The reversal of 923563 is 365329.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 923563 - 2¹ = 923561 is a prime.

It is a super-2 number, since 2×923563² = 1705937229938, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (923561) 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, 15895 + ... + 15952.

It is an arithmetic number, because the mean of its divisors is an integer number (238860).

2⁹²³⁵⁶³ is an apocalyptic number.

923563 is a deficient number, since it is larger than the sum of its proper divisors (31877).

923563 is a wasteful number, since it uses less digits than its factorization.

923563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31876.

The product of its digits is 4860, while the sum is 28.

The square root of 923563 is about 961.0218519888. The cubic root of 923563 is about 97.3842764640.

It can be divided in two parts, 92 and 3563, that added together give a triangular number (3655 = T₈₅).

The spelling of 923563 in words is "nine hundred twenty-three thousand, five hundred sixty-three".