648767207 has 16 divisors (see below), whose sum is σ = 733207680. Its totient is φ = 568629600.

The previous prime is 648767201. The next prime is 648767219. The reversal of 648767207 is 702767846.

It is not a de Polignac number, because 648767207 - 2¹² = 648763111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648767201) 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, 357332 + ... + 359142.

It is an arithmetic number, because the mean of its divisors is an integer number (45825480).

Almost surely, 2^648767207 is an apocalyptic number.

648767207 is a deficient number, since it is larger than the sum of its proper divisors (84440473).

648767207 is a wasteful number, since it uses less digits than its factorization.

648767207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974.

The product of its (nonzero) digits is 790272, while the sum is 47.

The square root of 648767207 is about 25470.9090336407. The cubic root of 648767207 is about 865.6911210632.

The spelling of 648767207 in words is "six hundred forty-eight million, seven hundred sixty-seven thousand, two hundred seven".