648017003 has 4 divisors (see below), whose sum is σ = 649754688. Its totient is φ = 646279320.

The previous prime is 648016961. The next prime is 648017011. The reversal of 648017003 is 300710846.

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 648017003 - 2²⁴ = 631239787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648017023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868283 + ... + 869028.

It is an arithmetic number, because the mean of its divisors is an integer number (162438672).

Almost surely, 2^648017003 is an apocalyptic number.

648017003 is a deficient number, since it is larger than the sum of its proper divisors (1737685).

648017003 is a wasteful number, since it uses less digits than its factorization.

648017003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737684.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 648017003 is about 25456.1780909861. The cubic root of 648017003 is about 865.3573108125.

Adding to 648017003 its reverse (300710846), we get a palindrome (948727849).

The spelling of 648017003 in words is "six hundred forty-eight million, seventeen thousand, three".