648603 has 12 divisors (see below), whose sum is σ = 986440. Its totient is φ = 409536.

The previous prime is 648563. The next prime is 648607. The reversal of 648603 is 306846.

It is not a de Polignac number, because 648603 - 2¹⁰ = 647579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1726 + ... + 2067.

2⁶⁴⁸⁶⁰³ is an apocalyptic number.

648603 is a deficient number, since it is larger than the sum of its proper divisors (337837).

648603 is a wasteful number, since it uses less digits than its factorization.

648603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818 (or 3815 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 648603 is about 805.3589261938. The cubic root of 648603 is about 86.5618077638.

The spelling of 648603 in words is "six hundred forty-eight thousand, six hundred three".