649031063 has 2 divisors, whose sum is σ = 649031064. Its totient is φ = 649031062.

The previous prime is 649031003. The next prime is 649031081. The reversal of 649031063 is 360130946.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 649031063 - 2⁶ = 649030999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649031003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324515531 + 324515532.

It is an arithmetic number, because the mean of its divisors is an integer number (324515532).

Almost surely, 2^649031063 is an apocalyptic number.

649031063 is a deficient number, since it is larger than the sum of its proper divisors (1).

649031063 is an equidigital number, since it uses as much as digits as its factorization.

649031063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 649031063 is about 25476.0880631230. The cubic root of 649031063 is about 865.8084650734.

The spelling of 649031063 in words is "six hundred forty-nine million, thirty-one thousand, sixty-three".