648613316 has 24 divisors (see below), whose sum is σ = 1223745600. Its totient is φ = 299027232.

The previous prime is 648613313. The next prime is 648613321. The reversal of 648613316 is 613316846.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 648613316.

It is not an unprimeable number, because it can be changed into a prime (648613313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43835 + ... + 56733.

It is an arithmetic number, because the mean of its divisors is an integer number (50989400).

Almost surely, 2^648613316 is an apocalyptic number.

It is an amenable number.

648613316 is a deficient number, since it is larger than the sum of its proper divisors (575132284).

648613316 is a wasteful number, since it uses less digits than its factorization.

648613316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13883 (or 13881 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 648613316 is about 25467.8879375578. The cubic root of 648613316 is about 865.6226668185.

The spelling of 648613316 in words is "six hundred forty-eight million, six hundred thirteen thousand, three hundred sixteen".