197563 has 4 divisors (see below), whose sum is σ = 203968. Its totient is φ = 191160.

The previous prime is 197551. The next prime is 197567. The reversal of 197563 is 365791.

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 197563 - 2¹⁷ = 66491 is a prime.

It is a super-3 number, since 3×197563³ = 23133326724397641, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 6373 = 197563 / (1 + 9 + 7 + 5 + 6 + 3).

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197567) 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, 3156 + ... + 3217.

It is an arithmetic number, because the mean of its divisors is an integer number (50992).

2¹⁹⁷⁵⁶³ is an apocalyptic number.

197563 is a deficient number, since it is larger than the sum of its proper divisors (6405).

197563 is an equidigital number, since it uses as much as digits as its factorization.

197563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404.

The product of its digits is 5670, while the sum is 31.

The square root of 197563 is about 444.4805957519. The cubic root of 197563 is about 58.2418557139.

The spelling of 197563 in words is "one hundred ninety-seven thousand, five hundred sixty-three".