648661795 has 8 divisors (see below), whose sum is σ = 786419424. Its totient is φ = 513579264.

The previous prime is 648661789. The next prime is 648661817. The reversal of 648661795 is 597166846.

648661795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 648661795 - 2³ = 648661787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668239 + ... + 669208.

It is an arithmetic number, because the mean of its divisors is an integer number (98302428).

Almost surely, 2^648661795 is an apocalyptic number.

648661795 is a deficient number, since it is larger than the sum of its proper divisors (137757629).

648661795 is a wasteful number, since it uses less digits than its factorization.

648661795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337549.

The product of its digits is 2177280, while the sum is 52.

The square root of 648661795 is about 25468.8396869587. The cubic root of 648661795 is about 865.6442325572.

The spelling of 648661795 in words is "six hundred forty-eight million, six hundred sixty-one thousand, seven hundred ninety-five".