648477315 has 24 divisors (see below), whose sum is σ = 1183188240. Its totient is φ = 327651264.

The previous prime is 648477299. The next prime is 648477317. The reversal of 648477315 is 513774846.

It is not a de Polignac number, because 648477315 - 2⁴ = 648477299 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 (648477317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378372 + ... + 380081.

It is an arithmetic number, because the mean of its divisors is an integer number (49299510).

Almost surely, 2^648477315 is an apocalyptic number.

648477315 is a deficient number, since it is larger than the sum of its proper divisors (534710925).

648477315 is a wasteful number, since it uses less digits than its factorization.

648477315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758483 (or 758480 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 648477315 is about 25465.2177489218. The cubic root of 648477315 is about 865.5621614426.

The spelling of 648477315 in words is "six hundred forty-eight million, four hundred seventy-seven thousand, three hundred fifteen".