648347875 has 16 divisors (see below), whose sum is σ = 924730560. Its totient is φ = 444580800.

The previous prime is 648347839. The next prime is 648347879. The reversal of 648347875 is 578743846.

It is not a de Polignac number, because 648347875 - 2²¹ = 646250723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648347879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369610 + ... + 371359.

It is an arithmetic number, because the mean of its divisors is an integer number (57795660).

Almost surely, 2^648347875 is an apocalyptic number.

648347875 is a deficient number, since it is larger than the sum of its proper divisors (276382685).

648347875 is an equidigital number, since it uses as much as digits as its factorization.

648347875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740991 (or 740981 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The square root of 648347875 is about 25462.6761162294. The cubic root of 648347875 is about 865.5045671270.

The spelling of 648347875 in words is "six hundred forty-eight million, three hundred forty-seven thousand, eight hundred seventy-five".