920563 has 6 divisors (see below), whose sum is σ = 1070916. Its totient is φ = 789012.

The previous prime is 920561. The next prime is 920609. The reversal of 920563 is 365029.

It is not a de Polignac number, because 920563 - 2¹ = 920561 is a prime.

It is a super-3 number, since 3×920563³ = 2340355333838680641, which contains 333 as substring.

920563 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (920561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9345 + ... + 9442.

It is an arithmetic number, because the mean of its divisors is an integer number (178486).

2⁹²⁰⁵⁶³ is an apocalyptic number.

920563 is a deficient number, since it is larger than the sum of its proper divisors (150353).

920563 is a wasteful number, since it uses less digits than its factorization.

920563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18801 (or 18794 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 920563 is about 959.4597438142. The cubic root of 920563 is about 97.2787179788.

The spelling of 920563 in words is "nine hundred twenty thousand, five hundred sixty-three".