648469275 has 12 divisors (see below), whose sum is σ = 1072135992. Its totient is φ = 345850240.

The previous prime is 648469271. The next prime is 648469303. The reversal of 648469275 is 572964846.

It is not a de Polignac number, because 648469275 - 2² = 648469271 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (648469271) 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 11 ways as a sum of consecutive naturals, for example, 4323054 + ... + 4323203.

It is an arithmetic number, because the mean of its divisors is an integer number (89344666).

Almost surely, 2^648469275 is an apocalyptic number.

648469275 is a deficient number, since it is larger than the sum of its proper divisors (423666717).

648469275 is a wasteful number, since it uses less digits than its factorization.

648469275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8646270 (or 8646265 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 648469275 is about 25465.0598860478. The cubic root of 648469275 is about 865.5585842686.

The spelling of 648469275 in words is "six hundred forty-eight million, four hundred sixty-nine thousand, two hundred seventy-five".