648693315 has 48 divisors (see below), whose sum is σ = 1170093600. Its totient is φ = 332054016.

The previous prime is 648693247. The next prime is 648693319. The reversal of 648693315 is 513396846.

It is not a de Polignac number, because 648693315 - 2⁷ = 648693187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (648693319) 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 47 ways as a sum of consecutive naturals, for example, 232207 + ... + 234983.

It is an arithmetic number, because the mean of its divisors is an integer number (24376950).

Almost surely, 2^648693315 is an apocalyptic number.

648693315 is a deficient number, since it is larger than the sum of its proper divisors (521400285).

648693315 is a wasteful number, since it uses less digits than its factorization.

648693315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996 (or 2993 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 648693315 is about 25469.4584748086. The cubic root of 648693315 is about 865.6582535588.

The spelling of 648693315 in words is "six hundred forty-eight million, six hundred ninety-three thousand, three hundred fifteen".