648000001 has 4 divisors (see below), whose sum is σ = 706909104. Its totient is φ = 589090900.

The previous prime is 647999993. The next prime is 648000047. The reversal of 648000001 is 100000846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 648000001 - 2³ = 647999993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648000601) 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, 29454535 + ... + 29454556.

It is an arithmetic number, because the mean of its divisors is an integer number (176727276).

Almost surely, 2^648000001 is an apocalyptic number.

It is an amenable number.

648000001 is a deficient number, since it is larger than the sum of its proper divisors (58909103).

648000001 is a wasteful number, since it uses less digits than its factorization.

648000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58909102.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 648000001 is about 25455.8441423576. The cubic root of 648000001 is about 865.3497426296.

Adding to 648000001 its reverse (100000846), we get a palindrome (748000847).

The spelling of 648000001 in words is "six hundred forty-eight million, one", and thus it is an aban number.