648208107 has 12 divisors (see below), whose sum is σ = 936866424. Its totient is φ = 431877600.

The previous prime is 648208081. The next prime is 648208111. The reversal of 648208107 is 701802846.

648208107 is a `hidden beast` number, since 648 + 2 + 0 + 8 + 1 + 0 + 7 = 666.

It is not a de Polignac number, because 648208107 - 2¹⁴ = 648191723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648208177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5394 + ... + 36407.

It is an arithmetic number, because the mean of its divisors is an integer number (78072202).

Almost surely, 2^648208107 is an apocalyptic number.

648208107 is a deficient number, since it is larger than the sum of its proper divisors (288658317).

648208107 is a wasteful number, since it uses less digits than its factorization.

648208107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43530 (or 43527 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 648208107 is about 25459.9314021071. The cubic root of 648208107 is about 865.4423687605.

It can be divided in two parts, 64820 and 8107, that added together give a palindrome (72927).

The spelling of 648208107 in words is "six hundred forty-eight million, two hundred eight thousand, one hundred seven".