647163 has 16 divisors (see below), whose sum is σ = 1046400. Its totient is φ = 392040.

The previous prime is 647161. The next prime is 647189. The reversal of 647163 is 361746.

647163 is a `hidden beast` number, since 647 + 16 + 3 = 666.

It is not a de Polignac number, because 647163 - 2¹ = 647161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 14.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (647161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793 + ... + 1386.

It is an arithmetic number, because the mean of its divisors is an integer number (65400).

2⁶⁴⁷¹⁶³ is an apocalyptic number.

647163 is a deficient number, since it is larger than the sum of its proper divisors (399237).

647163 is a wasteful number, since it uses less digits than its factorization.

647163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199 (or 2193 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 647163 is about 804.4644181069. The cubic root of 647163 is about 86.4977000513.

It can be divided in two parts, 64 and 7163, that added together give a palindrome (7227).

The spelling of 647163 in words is "six hundred forty-seven thousand, one hundred sixty-three".