648477795 has 16 divisors (see below), whose sum is σ = 1185788160. Its totient is φ = 296446944.

The previous prime is 648477793. The next prime is 648477811. The reversal of 648477795 is 597774846.

It is not a de Polignac number, because 648477795 - 2¹ = 648477793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648477793) 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 15 ways as a sum of consecutive naturals, for example, 3087885 + ... + 3088094.

It is an arithmetic number, because the mean of its divisors is an integer number (74111760).

Almost surely, 2^648477795 is an apocalyptic number.

648477795 is a deficient number, since it is larger than the sum of its proper divisors (537310365).

648477795 is a wasteful number, since it uses less digits than its factorization.

648477795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175994.

The product of its digits is 11854080, while the sum is 57.

The square root of 648477795 is about 25465.2271735400. The cubic root of 648477795 is about 865.5623750043.

The spelling of 648477795 in words is "six hundred forty-eight million, four hundred seventy-seven thousand, seven hundred ninety-five".