366563 has 4 divisors (see below), whose sum is σ = 370440. Its totient is φ = 362688.

The previous prime is 366547. The next prime is 366593. The reversal of 366563 is 365663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365663 = 211 ⋅1733.

It is a cyclic number.

It is not a de Polignac number, because 366563 - 2⁴ = 366547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366593) 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, 1793 + ... + 1986.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

2³⁶⁶⁵⁶³ is an apocalyptic number.

366563 is a deficient number, since it is larger than the sum of its proper divisors (3877).

366563 is an equidigital number, since it uses as much as digits as its factorization.

366563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876.

The product of its digits is 9720, while the sum is 29.

The square root of 366563 is about 605.4444648355. Note that the first 4 decimals coincide. The cubic root of 366563 is about 71.5675596621.

Subtracting from 366563 its reverse (365663), we obtain a square (900 = 30²).

It can be divided in two parts, 366 and 563, that added together give a palindrome (929).

The spelling of 366563 in words is "three hundred sixty-six thousand, five hundred sixty-three".