648163 has 4 divisors (see below), whose sum is σ = 676368. Its totient is φ = 619960.

The previous prime is 648133. The next prime is 648173. The reversal of 648163 is 361846.

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 648163 - 2⁹ = 647651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648133) 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, 14068 + ... + 14113.

It is an arithmetic number, because the mean of its divisors is an integer number (169092).

2⁶⁴⁸¹⁶³ is an apocalyptic number.

648163 is a deficient number, since it is larger than the sum of its proper divisors (28205).

648163 is a wasteful number, since it uses less digits than its factorization.

648163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28204.

The product of its digits is 3456, while the sum is 28.

The square root of 648163 is about 805.0857097229. The cubic root of 648163 is about 86.5422293719.

The spelling of 648163 in words is "six hundred forty-eight thousand, one hundred sixty-three".