648202267 has 2 divisors, whose sum is σ = 648202268. Its totient is φ = 648202266.

The previous prime is 648202249. The next prime is 648202277. The reversal of 648202267 is 762202846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648202267 - 2²³ = 639813659 is a prime.

It is equal to p_33704794 and since 648202267 and 33704794 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (648202277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324101133 + 324101134.

It is an arithmetic number, because the mean of its divisors is an integer number (324101134).

Almost surely, 2^648202267 is an apocalyptic number.

648202267 is a deficient number, since it is larger than the sum of its proper divisors (1).

648202267 is an equidigital number, since it uses as much as digits as its factorization.

648202267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 648202267 is about 25459.8167118304. The cubic root of 648202267 is about 865.4397696988.

The spelling of 648202267 in words is "six hundred forty-eight million, two hundred two thousand, two hundred sixty-seven".