648864683 has 8 divisors (see below), whose sum is σ = 663115200. Its totient is φ = 634765248.

The previous prime is 648864659. The next prime is 648864709. The reversal of 648864683 is 386468846.

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 648864683 - 2⁸ = 648864427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648864283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29066 + ... + 46287.

It is an arithmetic number, because the mean of its divisors is an integer number (82889400).

Almost surely, 2^648864683 is an apocalyptic number.

648864683 is a deficient number, since it is larger than the sum of its proper divisors (14250517).

648864683 is a wasteful number, since it uses less digits than its factorization.

648864683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75541.

The product of its digits is 5308416, while the sum is 53.

The square root of 648864683 is about 25472.8224388268. The cubic root of 648864683 is about 865.7344750228.

The spelling of 648864683 in words is "six hundred forty-eight million, eight hundred sixty-four thousand, six hundred eighty-three".