648354547 has 2 divisors, whose sum is σ = 648354548. Its totient is φ = 648354546.

The previous prime is 648354533. The next prime is 648354611. The reversal of 648354547 is 745453846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648354547 - 2⁷ = 648354419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 648354497 and 648354506.

It is not a weakly prime, because it can be changed into another prime (648354947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324177273 + 324177274.

It is an arithmetic number, because the mean of its divisors is an integer number (324177274).

Almost surely, 2^648354547 is an apocalyptic number.

648354547 is a deficient number, since it is larger than the sum of its proper divisors (1).

648354547 is an equidigital number, since it uses as much as digits as its factorization.

648354547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 46.

The square root of 648354547 is about 25462.8071311865. The cubic root of 648354547 is about 865.5075360201.

The spelling of 648354547 in words is "six hundred forty-eight million, three hundred fifty-four thousand, five hundred forty-seven".