648507417 has 8 divisors (see below), whose sum is σ = 880991424. Its totient is φ = 424180848.

The previous prime is 648507407. The next prime is 648507421. The reversal of 648507417 is 714705846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 648507417 - 2¹⁰ = 648506393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648507407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039173 + ... + 2039490.

It is an arithmetic number, because the mean of its divisors is an integer number (110123928).

Almost surely, 2^648507417 is an apocalyptic number.

It is an amenable number.

648507417 is a deficient number, since it is larger than the sum of its proper divisors (232484007).

648507417 is a wasteful number, since it uses less digits than its factorization.

648507417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078719.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 648507417 is about 25465.8087835435. The cubic root of 648507417 is about 865.5755542262.

The spelling of 648507417 in words is "six hundred forty-eight million, five hundred seven thousand, four hundred seventeen".