648864127 has 2 divisors, whose sum is σ = 648864128. Its totient is φ = 648864126.

The previous prime is 648864089. The next prime is 648864149. The reversal of 648864127 is 721468846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648864127 - 2¹¹ = 648862079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648864427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324432063 + 324432064.

It is an arithmetic number, because the mean of its divisors is an integer number (324432064).

Almost surely, 2^648864127 is an apocalyptic number.

648864127 is a deficient number, since it is larger than the sum of its proper divisors (1).

648864127 is an equidigital number, since it uses as much as digits as its factorization.

648864127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 46.

The square root of 648864127 is about 25472.8115252322. The cubic root of 648864127 is about 865.7342277455.

The spelling of 648864127 in words is "six hundred forty-eight million, eight hundred sixty-four thousand, one hundred twenty-seven".